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AU2011360973A1 - Compounds and methods for the treatment of pain and other disorders - Google Patents

Compounds and methods for the treatment of pain and other disorders Download PDF

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Publication number
AU2011360973A1
AU2011360973A1 AU2011360973A AU2011360973A AU2011360973A1 AU 2011360973 A1 AU2011360973 A1 AU 2011360973A1 AU 2011360973 A AU2011360973 A AU 2011360973A AU 2011360973 A AU2011360973 A AU 2011360973A AU 2011360973 A1 AU2011360973 A1 AU 2011360973A1
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AU
Australia
Prior art keywords
fused
heterocycloalkyl
cycloalkyl
pain
heteroarylalkyl
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AU2011360973A
Inventor
Irving Sucholeiki
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AQUILUS PHARMACEUTICALS Inc
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AQUILUS PHARMACEUTICALS Inc
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Publication of AU2011360973A1 publication Critical patent/AU2011360973A1/en
Abandoned legal-status Critical Current

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    • C07D207/30—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
    • C07D207/32—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • C07D207/33—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms with substituted hydrocarbon radicals, directly attached to ring carbon atoms
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Abstract

The present invention relates generally to pharmaceutical agents, and in particular, to metalloprotease inhibitor compounds. More particularly, the present invention provides a new class of dual acting MMP-2 and MMP-9 inhibiting compounds that exhibit increased potency, metabolic stability and/or reduced toxicity in relation to currently known MMP-2 and MMP-9 inhibitors for the treatment of pain and other diseases. Additionally, the present invention relates to methods for treating pain, addiction and/or withdrawal symptoms in a patient comprising administering to the patient a pain-reducing effective amount of a present compound.

Description

WO 2012/118498 PCT/US2011/026848 COMPOUNDS AND METHODS FOR THE TREATMENT OF PAIN AND OTHER DISORDERS 5 FIELD OF THE INVENTION The present invention relates generally to metalloprotease inhibiting compounds, and more particularly to MMP-2 and/or MMP-9 inhibiting compounds and their use for treating pain, substance addiction & withdrawal and other diseases. 10 BACKGROUND OF THE INVENTION Inflammation is defined as the complex biological response of vascular tissues to harmful stimuli, such as pathogens, damaged cells, or irritants. It is a protective attempt by the organism to remove the injurious stimuli as well as initiate the healing process for 15 the tissue. Inflammation may be acute (early phase of response) or chronic (occurs over a long time). Acute inflammation involves polymorphonuclear neutrophil leukocytes while chronic inflammation involves monocytes, macrophages, lymphocytes and plasma cells (collectively, mononuclear leukocytes). One affect of both acute and chronic inflammation is the sensation of pain which can be either neuropathic or nociceptive. 20 Some common ailments associated with neuropathic pain are lower back pain, neuralgia/fibromyalgia, diabetic neuropathic pain and pain associated with multiple sclerosis. Common ailments associated with nociceptive pain are arthritic pain, particularly osteoarthritis and rheumatoid arthritis, post-operative pain, cancer-related pain and HIV-related pain. 25 In 1997 the research group of Sommer and coworkers (Sommer C, Schmidt C, George A, Toyka KV. Neurosci Lett. 1997; 237: 45-48) showed that epineural injection of a potent matrix metalloproteinase inhibitor (TAPI-0) in the chronic constriction injury (CCI)-mouse model was able to block both mechanical allodynia and thermal hyperalgesia after the third day of daily injections. At the time the authors concluded that 30 inhibition of TNF-alpha was the mechanism of action since the inhibitor (TAPI-0) was a WO 2012/118498 PCT/US2011/026848 2 known inhibitor of TNF-alpha (IC50 ~ 100 nM). However, subsequently it has been shown that TABI-0 has a IC50 for MMP-9 of 0.5 nM. Ji and coworkers (Nature Medicine 14 (13), (2008), 331-336) have recently found that matrix metalloproteinase-9 (MMP-9) was upregulated in injured dorsal root ganglion 5 (DRG) primary sensory neurons in the early phase of the L5 spinal nerve ligation (SNL) neurophathic pain model (first day and then declining after 3 rd day) and that matrix metalloproteinase-2 (MMP-2) had a delayed response in the model (upregulation starting from day 7 and still present on day 21). They also found that MMP-2 induces neuropathic pain by IL- 1p cleavage and astocytic extracellular signal-regulated kinase 10 (ERK) activation. They also found that endogenous matrix metalloproteinase inhibitors (TIMP-1 and TIMP-2) also suppressed neuropathic pain in the model. Kobayashi and coworkers (Molecular and Cellular Neuroscience, 39, (2008), 619-627) recently demonstrated that MMPs degrade peripheral myelin basic protein (MBP) and that a broad spectrum, hydroxamic acid containing MMP inhibitor (GM6001) was found to attenuate 15 mechanical nociception. There have been other studies by other groups using knock out mice (Komori K., et al.. FEBS Lett., 557: 125-128, (2004) and Folguera, A.; et. al PNAS,106(38), 16451-16456 (2009)) demonstrating that MMP-2 is critical for inducing chronic neuropathic pain. It has been proposed that drug addiction is a result of drug-induced learning and 20 the formation of a long-term memory. With each drug use, the memory for the drug may be reactivated and reconsolidated to maintain the original memory (Hyman, S.E.; Malenka, R.C.; Nestler, E.J.; Neural mechanisms of addiction: the role of reward-related learning and memory, Annu. Rev. Neurosci., 29, 565-598, (2006)). Among the endogenous proteins that have been found to play a crucial role in synaptic plasticity are 25 the matrix metalloproteases (MMPs) and specifically MMP-2 and MMP-9. MMP-2 and MMP-9 have been found to be involved in axon extension, axon guidance of receptors, myelination of axons as well as clearing a path through the extracelluar matrix (Wright, J.W.; Harding, J.W.; Contributions of matrix metalloproteinases to neural plasticity, habituation, associative learning and drug addiction, Neural Plasticity, Vol. 2009, 12 30 pages, (2009)). MMP-2 and MMP-9, have also been found to be intimately involved in methamphetamine (Mizoguchi, H.; Yamada, K.; Niwa, M.; Mouri, A.; Mizuno, T.; Noda, WO 2012/118498 PCT/US2011/026848 3 Y.; Nitta, A.; Itoheara, S.; Banno, Y. and Nabeshima, T.; Reduction of methamphetamine-induced sensitization and reward in matrix metalloproteinase-2 and -9 deficient mice, J Neurochem, 100, 1579-1588, (2007)) and cocaine (Brown, T.E.; Forquer, M.R.; Cocking, D.L.; Jansen, H.T.; Harding, J.W. and Sorg, B.A.; Role of 5 matrix metalloproteinases in the acquisition and resonsolidation of cocaine-induced conditioned place preference, Learning and Memory, 14, 214-223, (2007)) induced behavioral sensitization and reward. For example Nabeshma and co-workers (Mizoguchi, H.; Yamada, K.; Niwa, M.; Mouri, A.; Mizuno, T.; Noda, Y.; Nitta, A.; Itoheara, S.; Banno, Y. and Nabeshima, T.; Role of matrix metalloproteinase and tissue 10 inhibitor of MMP in methamphetamine-induced behavioral sensitization and reward: implications for dopamine receptor down-regulation and dopamine release, Journal of Neurochemistry, 102, 1548-1560, (2007)) found that when a MMP-2/-9 inhibitor was infused (via miniosmotic pump) into either the right ventricle or the frontal cortex of rats it was found to block methamphentamine-induced behavioral sensitization and 15 conditioned place preference as well as reduce dopamine release in the nucleus accumbens. Among chronic users of opioids both tolerance and hyperalgesia frequently occur. Tolerance is a state of adaptation in which exposure to the opioid induces changes that result in a lowering of the drug's pain blocking effects over time. The result of tolerance 20 is that the user requires higher dosages of the opioid to maintain a therapeutic effect. Hyperalgesia is a state in which exposure to the opioid sensitizes the user to pain. Patients who chronically use opioids such as morphine become not only sensitize to the original pain but in many cases report new types of pain while on the opioid itself. Both tolerance and hyperalgesia are factors that help explain opioids prevalence for addiction 25 among chronic users. Recently, Song and coworkers (The Journal of Neuroscience, 30(22), (2010), 7613-7623) found a strong link between the physical dependence due to opioid withdrawal and enhanced MMP-9 activity in the dorsal horn. These researchers found that by administering exogenous MMP-9 in the spine they could induce both morphine-like withdrawal behavior as well as mechanical allodynia in normal mice. 30 When the researchers injected intrathecally a MMP-9 inhibitor (2-[Benzyl-(4-methoxy benzenesulfonyl)-amino]-5-diethylamino-N-hydroxy-3-methyl-benzamide) in mice WO 2012/118498 PCT/US2011/026848 4 undergoing morphine withdrawal they could eliminate the withdrawal behaviors. When they co-administered either a MMP-2 or a MMP-9 inhibitor they could significantly reduce morphine tolerance in mice. The compounds that had been used in all of the above studies to block either MMP-2 and/or MMP-9 activity were hydroxamic acid 5 containing MMP inhibitors that have known toxic side-effects. Matrix metalloproteinases (MMPs) are a family of structurally related zinc-containing enzymes that have been reported to mediate the breakdown of connective tissue in normal physiological processes such as embryonic development, reproduction, and tissue remodelling. Over-expression of MMPs or an imbalance between MMPs has 10 been suggested as factors in inflammatory, malignant and degenerative disease processes characterized by the breakdown of extracellular matrix or connective tissues. MMPs are, therefore, targets for therapeutic inhibitors in several inflammatory, malignant and degenerative diseases such as rheumatoid arthritis, osteoarthritis, osteoporosis, periodontitis, multiple sclerosis, gingivitis, corneal epidermal and gastric ulceration, 15 atherosclerosis, neointimal proliferation (which leads to restenosis and ischemic heart failure) and tumor metastasis but not pain. MMP-2 (72 kDa gelatinase/GelatinaseA) and MMP-9 (92kDa gelatinase/GelatinaseB) degrade the extracelluar matrix components of the basement membrane. Their substrates include types IV and V collagen, fibronectin, elastin, and denatured interstitial collagens. Matrix degradation attributed to this 20 proteinase has been shown to play an important role in the progression of such diseases as atheroslerosis, inflammation, stroke, and tumor growth and metastasis. However until recently, there has not been very much scientific literature published on the use of MMP 2 and/or MMP-9 inhibitors to treat pain and/or addiction. Matrix metalloproteinase have been tested clinically in a few indications. Most 25 predominantly in arthritis and cancer. Inhibitors that have entered clinical trials specifically for an oncologic indication include prinomastat (AG3340; Agouron/Pfizer), BAY 12-9566 (Bayer Corp.), batimistat (BB-94; British Biotech, Ltd,), BMS-275291 (formerly D2163; Celltech/Bristol-Myers Squibb), marimastat (BB 2516; British Biotech, Ltd./Schering-Plough), MM1270(B) (formerly CGS-27023A; Novartis), and Metastat 30 (COL-3; CollaGenex). Many of the hydroxamic acid containing inhibitors exhibit very broad toxicities in humans. For example, Marimastat, which contains a hydroxamate WO 2012/118498 PCT/US2011/026848 5 moiety, exhibited time-dependent and dose-dependent musculoskeletal toxicities (arthralgia, myalgia, tendinitis) in humans. Other toxicities for marimastat include ascites, disseminated carcinoma, chills, cholangitis, dizziness, dyspnea, edema, fatigue, fever, gastrointestinal (anorexia, nausea, vomiting, diarrhea, constipation), gastrointestinal 5 hemorrhage, headache, heartburn, hepatic toxicity, hypercalcemia, hyperglycemia, rash, and shortness of breath. It is not known whether the toxicities exhibited by many of the MMP inhibitors are attributed to the hydroxamic acid moiety contained in many of these broad spectrum MMP inhibitors, however, it is clear that having an MMP inhibitor that does not contain a hydroxamic acid group could reduce some of the potential metabolic 10 liabilities. Kushner and coworkers (Kushner, D.J.; Baker, A.; Dunstall, T.G. Can J. Physiol Pharmacol, 77(2), (1999) p.79-88) have presented examples of how incorporating deuterium into a drug can often reduce the level of metabolic induced transformations especially those mediated by Cytochrome P450. This reduce rate of Cytochrome P450 15 induce metabolism can sometimes translate directly to enhanced bioavailability. The reason for this is due to the fact that atomic substitution of a hydrogen by a deuterium in a drug alters the strength of the carbon-deuterium bond of the drug, while keeping it's 3D surface very similar to that of the nondeuterated version. Substitution of deuterium for hydrogen, can give rise to an isotope effect that can alter the pharmacokinetics of the 20 drug. In a reaction in which the cleavage of a C-H bond is rate determining the same reaction of the C-D analogue will be reduced. For example Schneider and coworkers (Scheneider, F.; et al., BiRDS Pharma GmbH, Arzneimittel Forschung (2006), 56(4), p. 295-300) have shown that replacing several of the hydrogen atoms around one of the aromatic rings of the COX-2 inhibitor Refecoxib (4-(4-methylsulfonylphenyl)-3-phenyl 25 5H-furan-2-one) with deuterium (at positions 2',3', 4',5' an 6') enhanced the oral bioavailability of the drug without affecting it's COX-2 selectivity. If one applied this strategy to the tryptophan based acid S-3304 one could reduce its susceptibility to cytochrome P-450 hdyroxylation and ultimately enhance its overall bioavailability and possibly it's target tissue compound concentration. 30 Another possible affect of incorporating deuterium into a drug is on its polymorphic (i.e., different crystalline forms) properties. For example, Hirota and WO 2012/118498 PCT/US2011/026848 6 Urushibara (Bulletin of the Chemical Society of Japan, 32(7), (1959), 703-706) have shown that replacing a single vinylic hydrogen for deuterium on Allocinnamic acid can change both the melting point and the intensity of the x-ray diffraction pattern of the molecule. Lin and Guillory (Journal of Pharmaceutical Science, Vol. 59(7), (2006), 972 5 979) have shown that sulfanilamide-d4 exhibited smaller heats of transition and heats of fusion for its various crystalline states as compared to it's corresponding non-deuterated forms. Finally, Crawford and co-workers (Crawford, S. et al., Angewandte Chemie International Edition, 48(4), (2009), 755-757) recently showed that the crystalline form of fully deuterated pyridine adopts a unique configuration that can only be obtained under 10 high pressure with the non-deuterated parent. Their work clearly showed that replacing hydrogen for deuterium changes the strength of interaction between various atoms in neighboring molecules causing a change in the crystalline arrangement to one that is more energetically favorable. This change in crystalline arrangement or polymorph may allow for improved dissolution properties and enhanced bioavailability. 15 Sucholeiki (WO/2010/075287) has shown that partially deuterating a matrix metalloproteinase (MMP) inhibitor can enhance the bioavailability of that inhibitor as compared it's non-deuterated parent. In human blood, the MMP inhibitor S3304 was known to form several hydroxylated metabolites (Chiapppori, A.A. et al. Clin. Cancer Res. 2007, 13(7), 2091-2099). Two of the main metabolites involved hydroxylation 20 around the indole ring of the tryptophan moiety and a third involved hydroxylation of the toluene methyl portion of the S3304 molecule. When the terminal toluene methyl portion of S3304 was deuterated, the compound was observed to exhibit greater in-vivo biological activity in the spinal nerve ligation (SNL) mouse model for mechanical allodynia as compared to vehicle control and non-deuterated parent (S3304). 25 There are a few non-hydroxamic acid containing MMP inhibitors that have appeared in the literature, a much smaller set of these have been tested clinically in cancer and/or inflammation. None of these, however, have been tested against pain, drug addiction or to reduce the tolerance and withdrawal associated with opioid use in animal models or humans. A series of MMP-2 and/or MMP-9 inhibiting compounds is 30 presented and a method for their use in inhibiting pain and other disorders is disclosed.
WO 2012/118498 PCT/US2011/026848 7 SUMMARY OF THE INVENTION The present invention is directed to compounds and pharmaceutical compositions for use as a medicament for treating MMP mediated conditions or diseases. One embodiment of the present invention relates to a new method for treating 5 pain, drug addiction and/or for reducing the tolerance and withdrawal side-effects due to substance abuse utilizing a MMP-2 and/or a MMP-9 inhibitor. The MMP-2 and/or MMP-9 inhibitor is represented by the general Formulas (I
XIII):
WO 2012/118498 PCT/US2011/026848 8 N 0CN 2 OH O 00 N /\ - 0 HO 2N NH H R VIII 0 H R R2 R1NH R R2 OH OHsR 2NN O RH R R2 R2NH 5H 0 H OH 0 OH 0 0 II Ix 0 1 > O N ----- - 01; O - X 0 NHOH RRH0
R
1
RR
2 O 0 x HO / /\ci R1 R2R 1 R 2 OH 0 v 9;t~ 0OH0 NH \ 0-- H 0OH 0 O N N H NR N0H xi 0 SN 0 FR1 H Ov HRH 0 _ _H M N o
R
1 -N S2\ andSR N0 0 H 0 HO VII XIII WO 2012/118498 PCT/US2011/026848 9 wherein all variables in the preceding Formulas (I-XIII) are as defined herein below. R1, R2 is independently selected from the group consisting of hydrogen, halo, 5 alkyl, cycloalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, 10 heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, heterocycloalkyl fused heteroarylalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, 15 spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, hydroxy, alkoxy, aryl, heteroaryl, arylalkyl, heteroarylalkyl, alkenyl, alkynyl, NO 2 , NR 9
R
9 , NR 9
NR
9
R
9 ,
NR
9
N=CR
9
R
9 , NR 9
SO
2
R
9 , CN, C(O)OR 9 , and fluoroalkyl, wherein alkyl, cycloalkyl, alkoxy, alkenyl, alkynyl and fluoroalkyl are optionally substituted one or more times and 20 heterocycloalkyl fused heteroarylalkyl are optionally substituted one or more times; N-oxides, deuterated analogs, pharmaceutically acceptable salts, prodrugs, formulations, polymorphs, tautomers, racemic mixtures or stereoisomers thereof. The MMP-2 and/or MMP-9 inhibiting compounds of the present invention may 25 be also be used in the treatment of other metalloprotease mediated diseases, such as rheumatoid arthritis, osteoarthritis, abdominal aortic aneurysm, cancer, inflammation, atherosclerosis, multiple sclerosis, chronic obstructive pulmonary disease, ocular diseases, neurological diseases, psychiatric diseases, thrombosis, bacterial infection, Parkinson's disease, fatigue, tremor, diabetic retinopathy, vascular diseases of the retina, 30 aging, dementia, cardiomyopathy, renal tubular impairment, diabetes, psychosis, dyskinesia, pigmentary abnormalities, deafness, inflammatory and fibrotic syndromes, WO 2012/118498 PCT/US2011/026848 10 intestinal bowel syndrome, allergies, Alzheimer's disease, arterial plaque formation, periodontal, viral infection, stroke, cardiovascular disease, reperfusion injury, trauma, chemical exposure or oxidative damage to tissues, wound healing, haemorrhoid, skin beautifying and pain. 5 In particular The MMP-2 and/or MMP-9 inhibiting compounds of the present invention may be used in the treatment of pain, drug addiction and/or withdrawal side effects due to substance abuse in a patient, said method comprising the step of administering to the patient an effective amount of a present compound in combination with a carrier, wherein the patient is suffering from enhanced or exaggerated sensitivity 10 to pain such as hyperalgesia, causalgia and allodynia; acute pain; bum pain; atypical facial pain; neuropathic pain; back pain; complex regional pain syndromes I and II arthritic pain; sports injury pain; pain related to viral infection, e. g., HIV, post-polio syndrome, and post-herpetic neuralgia; phantom limb pain; labor pain; cancer pain; post chemotherapy pain; post-stroke pain; post- operative pain; physiological pain; 15 inflammatory pain; acute inflammatory conditions/visceral pain, e. g., angina, irritable bowel syndrome (IBS), and inflammatory bowel disease; neuropathic pain; neuralgia; painful diabetic neuropathy; traumatic nerve injury; spinal cord injury; drug addiction and/or tolerance to or withdrawal from opioids or other drugs of addiction. The present invention also provides MMP-2, MMP-9 and/or other 20 metalloprotease inhibiting compounds that are useful as active ingredients in pharmaceutical compositions for treatment or prevention of metalloprotease - especially MMP-2 and/or MMP-9 -mediated diseases. The present invention also contemplates use of such compounds in pharmaceutical compositions for oral or parenteral administration, comprising one or more of the MMP-2 and/or MMP-9 inhibiting compounds disclosed 25 herein. The present invention further provides methods of inhibiting MMP-2, MMP-9 and/or other metalloproteases, by administering formulations, including, but not limited to, oral, rectal, topical, intrathecal, intravenous, parenteral (including, but not limited to, intramuscular, intravenous), ocular (ophthalmic), transdermal, inhalative (including, but 30 not limited to, pulmonary, aerosol inhalation), nasal, sublingual, subcutaneous or intraarticular formulations, comprising the heterobicyclic metalloprotease inhibiting WO 2012/118498 PCT/US2011/026848 11 compounds by standard methods known in medical practice, for the treatment of diseases or symptoms arising from or associated with metalloprotease, especially MMP-2 and including prophylactic and therapeutic treatment. Although the most suitable route in any given case will depend on the nature and severity of the conditions being treated and on 5 the nature of the active ingredient. The compounds from this invention are conveniently presented in unit dosage form and prepared by any of the methods well known in the art of pharmacy. The MMP-2 and/or MMP-9 inhibiting compounds of the present invention may be used in combination with a disease modifying antirheumatic drug, a nonsteroidal anti 10 inflammatory drug, a COX-2 selective inhibitor, a COX-1 inhibitor, an immunosuppressive, a steroid, a biological response modifier or other anti-inflammatory agents. BRIEF DESCRIPTION OF THE DRAWINGS 15 FIGURES 1(A-J) are graphs showing that intrathecal administration of Compound 10 significantly attenuates behavioral signs of naloxone-precipitated morphine withdrawal in CD-I mice as compared to control and vehicle (n = 5 mice for Control; n = 13 mice for vehicle control of DMSO and n = 14 mice for administration of 20 compound 10). DETAILED DESCRIPTION OF THE INVENTION The term "D" as used herein alone or as part of a chemical structure or group, 25 denotes deuterium. The term "deuterium" as used herein alone or as part of another group, denotes a stable isotope of hydrogen with a mass number of 2. The term "deuterated" as used herein alone or as part of a group, denote optionally substituted deuterium atoms. 30 The term "deuterated analog" as used herin alone or as part of a group denote optionally substituted deuterium atoms at select locations in and around a molecule.
WO 2012/118498 PCT/US2011/026848 12 The terms "alkyl" or "alk", as used herein alone or as part of another group, denote optionally substituted, straight and branched chain saturated hydrocarbon groups, preferably having 1 to 10 carbons in the normal chain, most preferably lower alkyl groups. Exemplary unsubstituted such groups include methyl, ethyl, propyl, isopropyl, n 5 butyl, t-butyl, isobutyl, pentyl, hexyl, isohexyl, heptyl, 4,4-dimethylpentyl, octyl, 2,2,4 trimethylpentyl, nonyl, decyl, undecyl, dodecyl and the like. Exemplary substituents may include, but are not limited to, one or more of the following groups: halo, alkoxy, alkylthio, alkenyl, alkynyl, aryl (e.g., to form a benzyl group), cycloalkyl, cycloalkenyl, hydroxy or protected hydroxy, carboxyl (--COOH), alkyloxycarbonyl, alkylcarbonyloxy, 10 alkylcarbonyl, carbamoyl (NH 2 --CO--), substituted carbamoyl ((R1 0 )(R" )N--COwherein R 10 or R" are as defined below, except that at least one of R1 0 or R 1 is not hydrogen), amino, heterocyclo, mono- or dialkylamino, or thiol (--SH). The term "heteroalkyl" and which may be used interchangeably with the term "alkyl" denote optionally substituted, straight and branched chain saturated hydrocarbon 15 groups, preferably having 1 to 10 carbons in the normal chain, most preferably lower alkyl groups. Exemplary unsubstituted such groups include methyl, ethyl, propyl, isopropyl, n-butyl, t-butyl, isobutyl, pentyl, hexyl, isohexyl, heptyl, 4,4-dimethylpentyl, octyl, 2,2,4-trimethylpentyl, nonyl, decyl, undecyl, dodecyl and the like. Exemplary substituents may include, but are not limited to, one or more of the following groups: 20 halo, alkoxy, alkylthio, alkenyl, alkynyl, aryl (e.g., to form a benzyl group), cycloalkyl, cycloalkenyl, hydroxy or protected hydroxy, carboxyl (--COOH), alkyloxycarbonyl, alkylcarbonyloxy, alkylcarbonyl, carbamoyl (NH 2 --CO--). The terms "lower alk" or "lower alkyl" as used herein, denote such optionally substituted groups as described above for alkyl having 1 to 4 carbon atoms in the normal 25 chain. The term "alkoxy" denotes an alkyl group as described above bonded through an oxygen linkage (--0--). The term "alkenyl", as used herein alone or as part of another group, denotes optionally substituted, straight and branched chain hydrocarbon groups containing at least 30 one carbon to carbon double bond in the chain, and preferably having 2 to 10 carbons in the normal chain. Exemplary unsubstituted such groups include ethenyl, propenyl, WO 2012/118498 PCT/US2011/026848 13 isobutenyl, butenyl, pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, and the like. Exemplary substituents may include, but are not limited to, one or more of the following groups: halo, alkoxy, alkylthio, alkyl, alkynyl, aryl, cycloalkyl, cycloalkenyl, hydroxy or protected hydroxy, carboxyl (--COOH), alkyloxycarbonyl, alkylcarbonyloxy, 5 alkylcarbonyl, carbamoyl (NH 2 --CO--), substituted carbamoyl. The term "alkynyl", as used herein alone or as part of another group, denotes optionally substituted, straight and branched chain hydrocarbon groups containing at least one carbon to carbon triple bond in the chain, and preferably having 2 to 10 carbons in the normal chain. Exemplary unsubstituted such groups include, but are not limited to, 10 ethynyl, propynyl, butynyl, pentynyl, hexynyl, heptynyl, octynyl, nonynyl, decynyl, and the like. Exemplary substituents may include, but are not limited to, one or more of the following groups: halo, alkoxy, alkylthio, alkyl, alkenyl, aryl, cycloalkyl, cycloalkenyl, hydroxy or protected hydroxy, carboxyl (--COOH), alkyloxycarbonyl, alkylcarbonyloxy, alkylcarbonyl, carbamoyl (NH 2 --CO--), substituted carbamoyl. 15 The term "cycloalkyl", as used herein alone or as part of another group, denotes optionally substituted, saturated cyclic hydrocarbon ring systems, including bridged ring systems, desirably containing 1 to 3 rings and 3 to 9 carbons per ring. Exemplary unsubstituted such groups include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclodecyl, cyclododecyl, and 20 adamantyl. Exemplary substituents include, but are not limited to, one or more alkyl groups as described above, or one or more groups described above as alkyl substituents. The terms "ar" or "aryl", as used herein alone or as part of another group, denote optionally substituted, homocyclic aromatic groups, preferably containing 1 or 2 rings and 6 to 12 ring carbons. Exemplary unsubstituted such groups include, but are not 25 limited to, phenyl, biphenyl, and naphthyl. Exemplary substituents include, but are not limited to, one or more nitro groups, alkyl groups as described above or groups described above as alkyl substituents. The term "heterocycle" or "heterocyclic system" denotes a heterocyclyl, heterocyclenyl, or heteroaryl group as described herein, which contains carbon atoms and 30 from 1 to 4 heteroatoms independently selected from N, 0 and S and including any bicyclic or tricyclic group in which any of the above-defined heterocyclic rings is fused WO 2012/118498 PCT/US2011/026848 14 to one or more heterocycle, aryl or cycloalkyl groups. The nitrogen and sulfur heteroatoms may optionally be oxidized. The heterocyclic ring may be attached to its pendant group at any heteroatom or carbon atom which results in a stable structure. The heterocyclic rings described herein may be substituted on carbon or on a nitrogen atom. 5 Examples of heterocycles include, but are not limited to 1H-indazole, 2 pyrrolidonyl, 2H,6H-1,5,2-dithiazinyl, 2H-pyrrolyl, 3H-indolyl, 4-piperidonyl, 4aH carbazole, 4H-quinolizinyl, 6H-1,2,5-thiadiazinyl, acridinyl, azocinyl, benzimidazolyl, benzofuranyl, benzothiofuranyl, benzothiophenyl, benzoxazolinyl, benzoxazolyl, benzthiazolyl, benztriazolyl, benztetrazolyl, benzisoxazolyl, benzisothiazolyl, 10 benzimidazalonyl, carbazolyl, 4aH-carbazolyl, b-carbolinyl, chromanyl, chromenyl, cinnolinyl, decahydroquinolinyl, 2H,6H- 1,5,2-dithiazinyl, dihydrofuro[2,3 b]tetrahydrofuran, furanyl, furazanyl, imidazolidinyl, imidazolinyl, imidazolyl, 1H indazolyl, indolenyl, indolinyl, indolizinyl, indolyl, isatinoyl, isobenzofuranyl, isochromanyl, isoindazolyl, isoindolinyl, isoindolyl, isoquinolinyl, isothiazolyl, 15 isoxazolyl, morpholinyl, naphthyridinyl, octahydroisoquinolinyl, oxadiazolyl, 1,2,3 oxadiazolyl, 1,2,4-oxadiazolyl, 1,2,5-oxadiazolyl, 1,3,4-oxadiazolyl, oxazolidinyl, oxazolyl, oxazolidinylperimidinyl, oxindolyl, phenanthridinyl, phenanthrolinyl, phenarsazinyl, phenazinyl, phenothiazinyl, phenoxathiinyl, phenoxazinyl, phthalazinyl, piperazinyl, piperidinyl, pteridinyl, piperidonyl, 4-piperidonyl, pteridinyl, purinyl, 20 pyranyl, pyrazinyl, pyrazolidinyl, pyrazolinyl, pyrazolyl, pyridazinyl, pyridooxazole, pyridoimidazole, pyridothiazole, pyridinyl, pyridyl, pyrimidinyl, pyrrolidinyl, pyrrolinyl, pyrrolyl, quinazolinyl, quinolinyl, 4H-quinolizinyl, quinoxalinyl, quinuclidinyl, carbolinyl, tetrahydrofuranyl, tetrahydroisoquinolinyl, tetrahydroquinolinyl, tetrazolyl, 6H-1,2,5-thiadiazinyl, 1,2,3-thiadiazolyl, 1,2,4-thiadiazolyl, 1,2,5-thiadiazolyl, 1,3,4 25 thiadiazolyl, thianthrenyl, thiazolyl, thienyl, thienothiazolyl, thienooxazolyl, thienoimidazolyl, thiophenyl, triazinyl, 1,2,3-triazolyl, 1,2,4-triazolyl, 1,2,5-triazolyl, 1,3,4-triazolyl, xanthenyl. "Heterocyclenyl" denotes a non-aromatic monocyclic or multicyclic hydrocarbon ring system of about 3 to about 10 atoms, desirably about 4 to about 8 atoms, in which 30 one or more of the carbon atoms in the ring system is/are hetero element(s) other than carbon, for example nitrogen, oxygen or sulfur atoms, and which contains at least one WO 2012/118498 PCT/US2011/026848 15 carbon-carbon double bond or carbon-nitrogen double bond. Ring sizes of rings of the ring system may include 5 to 6 ring atoms. The designation of the aza, oxa or thia as a prefix before heterocyclenyl define that at least a nitrogen, oxygen or sulfur atom is present respectively as a ring atom. The heterocyclenyl may be optionally substituted by 5 one or more substituents as defined herein. The nitrogen or sulphur atom of the heterocyclenyl may also be optionally oxidized to the corresponding N-oxide, S-oxide or S,S-dioxide. "Heterocyclenyl" as used herein includes by way of example and not limitation those described in Paquette, Leo A. ; "Principles of Modem Heterocyclic Chemistry" (W. A. Benjamin, New York, 1968), particularly Chapters 1, 3, 4, 6, 7, and 9; 10 "The Chemistry of Heterocyclic Compounds, A series of Monographs" (John Wiley & Sons, New York, 1950 to present), in particular Volumes 13, 14, 16, 19, and 28; and "J. Am. Chem. Soc. ", 82:5566 (1960), the contents all of which are incorporated by reference herein. Exemplary monocyclic azaheterocyclenyl groups include, but are not limited to, 1,2,3,4- tetrahydrohydropyridine, 1,2-dihydropyridyl, 1,4-dihydropyridyl, 15 1,2,3,6-tetrahydropyridine, 1,4,5,6-tetrahydropyrimidine, 2-pyrrolinyl, 3-pyrrolinyl, 2 imidazolinyl, 2-pyrazolinyl, and the like. Exemplary oxaheterocyclenyl groups include, but are not limited to, 3,4-dihydro-2H-pyran, dihydrofuranyl, and fluorodihydrofuranyl. An exemplary multicyclic oxaheterocyclenyl group is 7-oxabicyclo[2.2. 1 ]heptenyl. "Heterocyclyl," or "heterocycloalkyl," denotes a non-aromatic saturated 20 monocyclic or multicyclic ring system of about 3 to about 10 carbon atoms, desirably 4 to 8 carbon atoms, in which one or more of the carbon atoms in the ring system is/are hetero element(s) other than carbon, for example nitrogen, oxygen or sulfur. Ring sizes of rings of the ring system may include 5 to 6 ring atoms. The designation of the aza, oxa or thia as a prefix before heterocyclyl define that at least a nitrogen, oxygen or sulfur atom is 25 present respectively as a ring atom. The heterocyclyl may be optionally substituted by one or more substituents which may be the same or different, and are as defined herein. The nitrogen or sulphur atom of the heterocyclyl may also be optionally oxidized to the corresponding N-oxide, S-oxide or S,S-dioxide. "Heterocyclyl" as used herein includes by way of example and not limitation 30 those described in Paquette, Leo A.; "Principles of Modem Heterocyclic Chemistry" (W. A. Benjamin, New York, 1968), particularly Chapters 1, 3, 4, 6, 7, and 9; "The Chemistry WO 2012/118498 PCT/US2011/026848 16 of Heterocyclic Compounds, A series of Monographs" (John Wiley & Sons, New York, 1950 to present), in particular Volumes 13, 14, 16, 19, and 28; and "J. Am. Chem. Soc.", 82:5566 (1960). Exemplary monocyclic heterocyclyl rings include, but are not limited to, piperidyl, pyrrolidinyl, piperazinyl, morpholinyl, thiomorpholinyl, thiazolidinyl, 5 1,3-dioxolanyl, 1,4-dioxanyl, tetrahydrofuranyl, tetrahydrothiophenyl, tetrahydrothiopyranyl, and the like. "Heteroaryl" denotes an aromatic monocyclic or multicyclic ring system of about 5 to about 10 atoms, in which one or more of the atoms in the ring system is/are hetero element(s) other than carbon, for example nitrogen, oxygen or sulfur. Ring sizes of rings 10 of the ring system include 5 to 6 ring atoms. The "heteroaryl" may also be substituted by one or more subsituents which may be the same or different, and are as defined herein. The designation of the aza, oxa or thia as a prefix before heteroaryl define that at least a nitrogen, oxygen or sulfur atom is present respectively as a ring atom. A nitrogen atom of a heteroaryl may be optionally oxidized to the corresponding N-oxide. Heteroaryl as 15 used herein includes by way of example and not limitation those described in Paquette, Leo A. ; "Principles of Modem Heterocyclic Chemistry" (W. A. Benjamin, New York, 1968), particularly Chapters 1, 3, 4, 6, 7, and 9; "The Chemistry of Heterocyclic Compounds, A series of Monographs" (John Wiley & Sons, New York, 1950 to present), in particular Volumes 13, 14, 16, 19, and 28; and "J. Am. Chem. Soc. ", 82:5566 (1960). 20 Exemplary heteroaryl and substituted heteroaryl groups include, but are not limited to, pyrazinyl, thienyl, isothiazolyl, oxazolyl, pyrazolyl, furazanyl, pyrrolyl, 1,2,4 thiadiazolyl, pyridazinyl, quinoxalinyl, phthalazinyl, imidazo[1,2-a]pyridine, imidazo[2,1-b]thiazolyl, benzofurazanyl, azaindolyl, benzimidazolyl, benzothienyl, thienopyridyl, thienopyrimidyl, pyrrolopyridyl, imidazopyridyl, benzoazaindole, 1,2,3 25 triazinyl, 1,2,4-triazinyl, 1,3,5-triazinyl, benzthiazolyl, dioxolyl, furanyl, imidazolyl, indolyl, indolizinyl, isoxazolyl, isoquinolinyl, isothiazolyl, , oxadiazolyl, oxazinyl, oxiranyl, piperazinyl, piperidinyl, pyranyl, pyrazinyl, pyridazinyl, pyrazolyl, pyridyl, pyrimidinyl, pyrrolyl, pyrrolidinyl, quinazolinyl, quinolinyl, tetrazinyl, tetrazolyl, 1,3,4 thiadiazolyl, 1,2,3-thiadiazolyl, 1,2,4-thiadiazolyl, 1,2,5-thiadiazolyl, thiatriazolyl, 30 thiazinyl, thiazolyl, thienyl, 5-thioxo-1,2,4-diazolyl, thiomorpholino, thiophenyl, thiopyranyl, triazolyl and triazolonyl.
WO 2012/118498 PCT/US2011/026848 17 The term "amino" denotes the radical -NH 2 wherein one or both of the hydrogen atoms may be replaced by an optionally substituted hydrocarbon group. Exemplary amino groups include, but are not limited to, n-butylamino, tert-butylamino, methylpropylamino and ethyldimethylamino. 5 The term "cycloalkylalkyl" denotes a cycloalkyl-alkyl group wherein a cycloalkyl as described above is bonded through an alkyl, as defined above. Cycloalkylalkyl groups may contain a lower alkyl moiety. Exemplary cycloalkylalkyl groups include, but are not limited to, cyclopropylmethyl, cyclopentylmethyl, cyclohexylmethyl, cyclopropylethyl, cyclopentylethyl, cyclohexylpropyl, cyclopropylpropyl, cyclopentylpropyl, and 10 cyclohexylpropyl. The term "arylalkyl" denotes an aryl group as described above bonded through an alkyl, as defined above. The term "heteroarylalkyl" denotes a heteroaryl group as described above bonded through an alkyl, as defined above. 15 The term "heterocyclylalkyl," or "heterocycloalkylalkyl," denotes a heterocyclyl group as described above bonded through an alkyl, as defined above. The terms "halogen", "halo", or "hal", as used herein alone or as part of another group, denote chlorine, bromine, fluorine, and iodine. The term "haloalkyl" denotes a halo group as described above bonded though an 20 alkyl, as defined above. Fluoroalkyl is an exemplary group. The term "aminoalkyl" denotes an amino group as defined above bonded through an alkyl, as defined above. The phrase "bicyclic fused ring system wherein at least one ring is partially saturated" denotes an 8- to 13-membered fused bicyclic ring group in which at least one 25 of the rings is non-aromatic. The ring group has carbon atoms and optionally 1-4 heteroatoms independently selected from N, 0 and S. Illustrative examples include, but are not limited to, indanyl, tetrahydronaphthyl, tetrahydroquinolyl and benzocycloheptyl. The phrase "tricyclic fused ring system wherein at least one ring is partially saturated" denotes a 9- to 18-membered fused tricyclic ring group in which at least one of 30 the rings is non-aromatic. The ring group has carbon atoms and optionally 1-7 heteroatoms independently selected from N, 0 and S. Illustrative examples include, but WO 2012/118498 PCT/US2011/026848 18 are not limited to, fluorene, 10,11-dihydro-5H-dibenzo[a,d]cycloheptene and 2,2a,7,7a tetrahydro- 1 H-cyclobuta[a]indene. The term "isotopic enrichment" refers to a process by which the relative abundance of an isotope of a given element are altered, thus producing a form of the 5 element that has been enriched in one particular isotope and depleted in its other isotopic forms. The term "pharmaceutically acceptable salts" refers to derivatives of the disclosed compounds wherein the parent compound is modified by making acid or base salts thereof. Examples of pharmaceutically acceptable salts include, but are not limited to, 10 mineral or organic acid salts of basic residues such as amines; alkali or organic salts of acidic residues such as carboxylic acids; and the like. The pharmaceutically acceptable salts include the conventional non-toxic salts or the quaternary ammonium salts of the parent compound formed, for example, from non-toxic inorganic or organic acids. For example, such conventional non-toxic salts include those derived from inorganic acids 15 such as, but not limited to, hydrochloric, hydrobromic, sulfuric, sulfamic, phosphoric, nitric and the like; and the salts prepared from organic acids such as, but not limited to, acetic, propionic, succinic, glycolic, stearic, lactic, malic, tartaric, citric, ascorbic, pamoic, maleic, hydroxymaleic, phenylacetic, glutamic, benzoic, salicylic, sulfanilic, 2 acetoxybenzoic, fumaric, toluenesulfonic, methanesulfonic, ethane disulfonic, oxalic, 20 isethionic, and the like. The term "polymorph" denotes a form of a chemical compound in a particular crystalline arrangement. Certain polymorphs may exhibit enhanced thermodynamic stability and may be more suitable than other polymorphic forms for inclusion in pharmaceutical formulations. Compounds having hydrogens replaced by deuterium may 25 form polymorphs which may enhance their solubility and/or bioavailability properties. The term "deuterated analogs" as used herein alone or as part of a group, denote optionally substituted deuterium atoms in place of hydrogen. Kushner and coworkers (Kushner, D.J.; Baker, A.; Dunstall, T.G. Can J. Physiol Pharmacol, 77(2), (1999) p.79-88) have presented examples of how incorporating 30 deuterium into a drug can often reduce the level of metabolic induced transformations especially those mediated by Cytochrome P450. This reduce rate of Cytochrome P450 WO 2012/118498 PCT/US2011/026848 19 induce metabolism can sometimes translate directly to enhanced bioavailablity. The reason for this is due to the fact that atomic substitution of a hydrogen by a deuterium in a drug alters the strength of the carbon-deuterium bond of the drug, while keeping it's 3D surface identical to the nondeuterated version. Substitution of deuterium for hydrogen, 5 can give rise to an isotope effect that can alter the pharmacokinetics of the drug. In a reaction in which the cleavage of a C-H bond is rate determining the same reaction of the C-D analogue will be reduced. For example Schneider and coworkers (Scheneider, F.; et al., BiRDS Pharma GmbH, Arzneimittel Forschung (2006), 56(4), p. 295-300) have shown that replacing several of the hydrogen atoms around one of the aromatic rings of 10 the COX-2 inhibitor Refecoxib (4-(4-methylsulfonylphenyl)-3-phenyl-5H-furan-2-one) with deuterium (at positions 2',3', 4',5' an 6') enhanced the oral bioavailability of the drug without affecting it's COX-2 selectivity. The pharmaceutically acceptable salts of the present invention can be synthesized from the parent compound which contains a basic or acidic moiety by conventional 15 chemical methods. Generally, such salts can be prepared by reacting the free acid or base forms of these compounds with a stoichiometric amount of the appropriate base or acid in water or in an organic solvent, or in a mixture of the two. Organic solvents include, but are not limited to, nonaqueous media like ethers, ethyl acetate, ethanol, isopropanol, or acetonitrile. Lists of suitable salts are found in Remington's Pharmaceutical Sciences, 20 18th ed., Mack Publishing Company, Easton, PA, 1990, p. 1445, the disclosure of which is hereby incorporated by reference. The phrase "pharmaceutically acceptable" denotes those compounds, materials, compositions, and/or dosage forms which are, within the scope of sound medical judgment, suitable for use in contact with the tissues of human beings and animals 25 without excessive toxicity, irritation, allergic response, or other problem or complication commensurate with a reasonable benefit/risk ratio. The term "N-oxide" denotes compounds that can be obtained in a known manner by reacting a compound of the present invention including a nitrogen atom (such as in a pyridyl group) with hydrogen peroxide or a peracid, such as 3-chloroperoxy-benzoic 30 acid, in an inert solvent, such as dichloromethane, at a temperature between about -10 80'C, desirably about 0 0
C.
WO 2012/118498 PCT/US2011/026848 20 "Substituted" is intended to indicate that one or more hydrogens on the atom indicated in the expression using "substituted" is replaced with a selection from the indicated group(s), provided that the indicated atom's normal valency is not exceeded, and that the substitution results in a stable compound. When a substituent is keto (i.e., 5 =0) group, then 2 hydrogens on the atom are replaced. Unless moieties of a compound of the present invention are defined as being unsubstituted, the moieties of the compound may be substituted. In addition to any substituents provided above, the moieties of the compounds of the present invention may be optionally substituted with one or more groups independently selected from: 10 Ci-C 4 alkyl;
C
2
-C
4 alkenyl;
C
2
-C
4 alkynyl;
CF
3 ; halo; 15 OH; 0-(Ci-C 4 alkyl);
OCH
2 F;
OCHF
2 ;
OCF
3 ; 20 OC(O)-(Ci-C 4 alkyl); OC(O)-(Ci-C 4 alkyl);
OC(O)NH-(CI-C
4 alkyl);
OC(O)N(C
1
-C
4 alkyl) 2 ; OC(S)NH-(Ci-C 4 alkyl); 25 OC(S)N(CI-C 4 alkyl) 2 ; SH;
S-(C
1
-C
4 alkyl); S(O)-(Ci-C 4 alkyl); S(0) 2
-(C
1
-C
4 alkyl); 30 SC(O)-(C 1
-C
4 alkyl); SC(0)0-(Ci-C 4 alkyl); WO 2012/118498 PCT/US2011/026848 21
NH
2 ;
N(H)-(C
1
-C
4 alkyl);
N(CI-C
4 alkyl) 2 ; N(H)C(O)-(CI-C4 alkyl); 5 N(CH 3 )C(O)-(Ci-C 4 alkyl);
N(H)C(O)-CF
3 ;
N(CH
3
)C(O)-CF
3 ; N(H)C(S)-(Ci-C 4 alkyl);
N(CH
3 )C(S)-(Ci -C 4 alkyl); 10 N(H)S(O) 2 -(Ci-C 4 alkyl);
N(H)C(O)NH
2 ;
N(H)C(O)NH-(CI-C
4 alkyl);
N(CH
3 )C(O)NH-(Ci-C 4 alkyl); N(H)C(O)N(Ci-C 4 alkyl) 2 ; 15 N(CH 3
)C(O)N(CI-C
4 alkyl) 2 ;
N(H)S(O)
2
NH
2 );
N(H)S(O)
2 NH-(Ci-C 4 alkyl);
N(CH
3
)S(O)
2 NH-(Ci-C 4 alkyl);
N(H)S(O)
2 N(Ci-C 4 alkyl) 2 ; 20 N(CH 3
)S(O)
2 N(Ci-C 4 alkyl) 2 ; N(H)C(0)O-(Ci-C 4 alkyl);
N(CH
3 )C(O)O-(Ci -C 4 alkyl);
N(H)S(O)
2 0-(Ci-C 4 alkyl);
N(CH
3
)S(O)
2 0-(C I-C 4 alkyl); 25 N(CH 3 )C(S)NH-(Ci-C 4 alkyl);
N(CH
3 )C(S)N(Ci-C 4 alkyl) 2 ;
N(CH
3 )C(S)O-(C I-C 4 alkyl);
N(H)C(S)NH
2 ;
NO
2 ; 30 CO 2 H; C0 2 -(Ci-C 4 alkyl); WO 2012/118498 PCT/US2011/026848 22 C(O)N(H)OH;
C(O)N(CH
3 )OH:
C(O)N(CH
3 )OH;
C(O)N(CH
3
)O-(C
1
-C
4 alkyl); 5 C(O)N(H)-(C 1
-C
4 alkyl);
C(O)N(C
1
-C
4 alkyl) 2 ; C(S)N(H)-(Ci-C 4 alkyl);
C(S)N(C
1
-C
4 alkyl) 2 ; C(NH)N(H)-(Ci-C 4 alkyl); 10 C(NH)N(C 1
-C
4 alkyl) 2 ;
C(NCH
3 )N(H)-(Ci-C 4 alkyl);
C(NCH
3
)N(C
1
-C
4 alkyl) 2 ;
C(O)-(CI-C
4 alkyl);
C(NH)-(C
1
-C
4 alkyl); 15 C(NCH 3
)-(C
1
-C
4 alkyl);
C(NOH)-(C
1
-C
4 alkyl);
C(NOCH
3
)-(C
1
-C
4 alkyl); CN; CHO; 20 CH 2 OH;
CH
2 0-(Ci -C 4 alkyl);
CH
2
NH
2 ;
CH
2 N(H)-(Ci-C 4 alkyl);
CH
2
N(CI-C
4 alkyl) 2 ; 25 aryl; heteroaryl; cycloalkyl; and heterocyclyl. 30 WO 2012/118498 PCT/US2011/026848 23 In one embodiment of the present invention, the matalloprotease inhibiting compounds may be represented by the general Formula (I-XIII): WO 2012/118498 PCT/US2011/026848 24 HO 2 H N -- 0/N0O O 00 I RII R R2 RlNH R - 0R2 OH OH SNH2 , OH 0 H OH 0 OH 0 0 II Ix s _, s R 2 NHHO HO CHOX 0 R R 2 HO O HNR R R 2 O S O ROH IV H RNH, 0 q~t OH \ 0 H 0 OH 0 OH 0 0 O N---( --- 1XI N N HN v R I HO R2 d s HO/S \V H XI H o i 0 0
R
1 N r / /R and HO\ N 0 H 0 HO VII XIII WO 2012/118498 PCT/US2011/026848 25 (I-XIII) wherein all variables in the preceding Formulas (I-XIII) are as defined herein below. R', R2 is independently selected from the group consisting of hydrogen, halo, 5 alkyl, cycloalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, 10 heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, heterocycloalkyl fused heteroarylalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, 15 spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, hydroxy, alkoxy, aryl, heteroaryl, arylalkyl, heteroarylalkyl, alkenyl, alkynyl, NO 2 , NR 9
R
9 , NR 9
NR
9
R
9 ,
NR
9
N=CR
9
R
9 , NR 9
SO
2
R
9 , CN, C(O)OR 9 , and fluoroalkyl, wherein alkyl, cycloalkyl, alkoxy, alkenyl, alkynyl and fluoroalkyl are optionally substituted one or more times and 20 heterocycloalkyl fused heteroarylalkyl are optionally substituted one or more times; N-oxides, deuterated analogs, pharmaceutically acceptable salts, prodrugs, formulations, tautomers, racemic mixtures or stereoisomers thereof. It is contemplated that the compounds of the present invention represented by the Formulas described above include all diastereomers and enantiomers, as well as racemic 25 mixtures. Racemic mixtures may be separated by chiral salt resolution or by chiral column HPLC chromatography. As was motioned above the compounds of the present invention represented by the Formulas described above include deuterated analogs in which one or more hydrogens of the molecule are replaced by deuterium atoms. More specifically, the compounds of Formula (I-XIII) may be selected from, but 30 are not limited to, the following: WO 2012/118498 PCT/US2O1 1/026848 26 0 0 HO cl M - 0 H ' N 0 -~ - NHN 0 0 N" 16 (Rebimastat) H 0NN HO NH 0N HO NH Me H 026 27 0 OH H ~MeN S / Br tH 0 25 OH 0 OH 0 0 HO 17 H 0 - H 00 0 S- / N N H I 13 H 0 -H 0 - H 0 - S, 0 s - \ N OMe 0 I HO24 o 0HO 22 0 0 0
-
S 0 14 (T nnsstat) O N ro) OH 00 N OH2 H OH 0 OH 0 0 I1I (ONO 4817) NHOH 19 (Sancycline) WO 2012/118498 PCT/US2011/026848 27 HN HN OH OH OH 0 ) 0 01 H~ N. H S CD 5(S3304)
D
3 C CD3 r OHH NH2HOO NH2 o OH 3H 14 (PD 166793) 0 OH 0 OH 0 0 18 OH H 0 H NH, NH2 P ; ~OH H.0 OH 0 OH 0 0 HO 23 O 0 17 D ,OH D Me\,/Me D D D D o O OH D OH H OH OH 0 OH 0 0 OH 0 OH 0 0 38 3 H OHN 0 D H D ( OH 0 NHD, DN O NH2 D 0H D OH 0 OH 0 0 ~OH OH 0 OH 0 0 34 37 00 HO\ scI N0 H o 40(Roi]3-0830) WO 2012/118498 PCT/US2011/026848 28 N OHN S 0 D NH HO O O HN O O -NCS HN 0 O SH CD, N HN CN 0 O O D3CNB 00 HO HN HO O D 0 N O HO H O NH H 0 S-CD OD 0 0 SN 0 C 0 N HO -D3 0 o D JCN o\/ \/B 0 CDCD HO d C WO 2012/118498 PCT/US2011/026848 29 0 M HOH 0 C- H 0 0SH Me CN O O O O MeN B HO HN NH 0 Me HO H CN OH and \/CN -- 0 a ~~~ 000NS / \ B 00 MH HOp ud oi 0 OH 0d 0 0 0 OH HO ci 5 described above. In accordance therewith, some embodiments of the present invention provide a pharmaceutical composition which may include an effective amount of a MMP-2 and/or MMP-9 inhibiting compound of the present invention and a pharmaceutically acceptable carrier.
WO 2012/118498 PCT/US2011/026848 30 The present invention also is directed to methods of inhibiting MMP-2 and/or MMP-9 and methods of treating diseases or symptoms mediated by an MMP-2 and/or MMP-9 enzyme. Such methods include administering a MMP-2 and/or MMP-9 inhibiting compound of the present invention, such as a compound of Formula (I-XIII), 5 as defined above, deuterated analog or an N-oxide, pharmaceutically acceptable salt, polymorph or stereoisomer thereof. Examples of diseases or symptoms mediated by an MMP-2 and/or MMP-9 enzyme include, but are not limited to exaggerated sensitivity to pain, such as hyperalgesia, causalgia and allodynia; acute pain; bum pain; mechanically induced pain; atypical facial pain; neuropathic pain; back pain; complex regional pain 10 syndromes I and II ; arthritic joint pain; sports injury pain; pain related to viral infection, and post-herpetic neuralgia; phantom limb pain; labor pain; cancer pain; post chemotherapy pain; post-stroke pain; post- operative pain; physiological pain; inflammatory pain; acute inflammatory conditions/visceral pain, angina, irritable bowel syndrome (IBS), and inflammatory bowel disease; neuropathic pain; neuralgia; painful 15 diabetic neuropathy; traumatic nerve injury; spinal cord injury; drug addiction and tolerance to opioids or withdrawal from opioids or other compounds of addiction. In some embodiments of the present invention, the MMP-2 and/or MMP-9 inhibiting compounds defined above are used in the manufacture of a medicament for the treatment of a disease mediated by an MMP-2 and/or MMP-9. 20 In some embodiments, the MMP-2 inhibiting compounds defined above may be used in combination with a drug, agent or therapeutic such as, but not limited to: (a) a disease modifying antirheumatic drug; (b) a nonsteroidal anti-inflammatory drug; (c) a COX-2 selective inhibitor; (d) a COX-1 inhibitor; (e) an immunosuppressive; (f) a steroid; (g) a biological response modifier; (h) an opioid or (i) other anti-inflammatory 25 agents or therapeutics useful for the treatment of chemokine mediated diseases. Examples of disease modifying antirheumatic drugs include, but are not limited to, methotrexate, azathioptrineluflunomide, penicillamine, gold salts, mycophenolate, mofetil and cyclophosphamide. Examples of nonsteroidal anti-inflammatory drugs include, but are not limited to, 30 piroxicam, ketoprofen, naproxen, indomethacin, and ibuprofen.
WO 2012/118498 PCT/US2011/026848 31 Examples of COX-2 selective inhibitors include, but are not limited to, rofecoxib, celecoxib, and valdecoxib. An example of a COX-1 inhibitor includes, but is not limited to, piroxicam. Examples of immunosuppressives include, but are not limited to, methotrexate, 5 cyclosporin, leflunimide, tacrolimus, rapamycin and sulfasalazine. Examples of steroids include, but are not limited to, p-methasone, prednisone, cortisone, prednisolone and dexamethasone. Examples of biological response modifiers include, but are not limited to, anti TNF antibodies, TNF-a antagonists, IL-1 antagonists, anti- CD40, anti-CD28, IL-10 and 10 anti-adhesion molecules. Examples of anti-inflammatory agents or therapeutics include, but are not limited to, p38 kinase inhibitors, PDE4 inhibitors, TACE inhibitors, chemokine receptor antagonists, thalidomide, leukotriene inhibitors and other small molecule inhibitors of pro-inflammatory cytokine production. 15 In accordance with another embodiment of the present invention, a pharmaceutical composition may include an effective amount of a compound of the present invention, a pharmaceutically acceptable carrier and a drug, agent or therapeutic selected from: (a) a disease modifying antirheumatic drug; (b) a nonsteroidal anti inflammatory drug; (c) a COX-2 selective inhibitor; (d) a COX-1 inhibitor; (e) an 20 immunosuppressive; (f) a steroid; (g) a biological response modifier; (h) an opioid; or (h) other anti-inflammatory agents or therapeutics useful for the treatment of chemokine mediated diseases. The MMP inhibiting activity of the MMP inhibiting compounds of the present invention may be measured using any suitable assay known in the art. A standard in vitro 25 assay for MMP-2 inhibiting activity is described in Example 130 and for MMP-9 is described in Example 131. Additionally, standard in vitro assays for measuring MMP- 1, MMP-7, MMP-3, MMP-12 and MMP-13 are described in Examples 132-136. Standard in vitro assays for measuring human and mouse microsomal stability is presented in Example 105. The in vivo pain inhibiting properties of the MMP inhibiting compounds 30 of the present invention may be measured using any suitable animal model known in the art. A standard in vivo test for measuring neuropathic pain inhibition is described in WO 2012/118498 PCT/US2011/026848 32 Examples 110 and 111 and a test for measuring inflammatory pain is described in Example 120. Finally, a standard in vivo test for measuring morphine tolerance and naloxone-precipitated morphine withdrawal is described in Example 125 and a standard in vivo test for measuring cue initiated relapse is described in Example 126. 5 The MMP inhibiting compounds of the invention may have an inhibition activity
(IC
5 o MMP-2 and/or MMP-9) ranging from about 0.2 nM to about 20 piM, and typically, from about 1 nM to about 2 piM. The synthesis of MMP inhibiting compounds of the present invention and their biological assay are described in the following examples which are not intended to be limiting in any way. 10 EXAMPLES AND METHODS All reagents and solvents would be obtained from commercial sources and used without further purification. Proton ( 1 H) spectra would be recorded on a NMR spectrometer in deuterated solvents. Flash chromatography would be performed using Merck silica gel, grade 60, 70-230 mesh using suitable organic solvents as indicated in 15 specific examples. Thin layer chromatography (TLC) would be carried out on silica gel plates with UV detection. Example 1 H N Br 0 Step A r -C 1 + H2 HB OH IIOH O 0 H 2 N Br-j S 9 o 1 2 3 20 Step A To a suspension of (R)-2-Amino-3-(1H-indol-3-yl)-propionic acid 2 (0.23 g, 1.12 mmol) (Alfa-Aesar, A- 18426) in acetone (3 mL) was added 2M sodium carbonate (1 mL) to stir at room temperature for 30 minutes. To this mixture was added bromosulfonyl chloride 1 25 (0.13g, 0.5 mmol) (Alfa-Aesar, A-14677) at 0 C to stir for 15 minutes. The reaction mixture was stirred further for 1 hour at room temperature. After pouring into water (20 WO 2012/118498 PCT/US2011/026848 33 mL), the solution was washed with ether (x3). The aqueous layer was acidified with IM HCl, followed by extraction with ethyl acetate (x3). The combined organic extracts were then washed with brine and dried (Na 2
SO
4 ) to provide the crude (R)-2-(5-Bromo thiophene-2-sulfonylamino)-3-(1H-indol-3-yl)-propionic acid product (3) (0.16g, 74 %). 5 LC-MS (ES+) 429, 431; (ES-) 427, 429. A portion of the crude (R)- 2-(5-Bromo-thiophene-2-sulfonylamino)-3-(1H-indol-3-yl) propionic acid product (3) was taken to the next step without further purification. Example 2 10 NH NH - H Br -O H StepA -N NH Br S H 0 H0 3 4 5 Step A In a round bottom flask was added crude (R)-2-(5-Bromo-thiophene-2-sulfonylamino)-3 (1H-indol-3-yl)-propionic acid (3) (60mg, 0.14 mmol), p-tolyl acetylene 4 (480mg, 0.41 15 mmol), PdCl 2 P(PPh 3
)
2 (10mg, 0.015 mmol), copper(I)iodide (2 mg, 0.01 mmol) and triethylamine (0.025 g, 0.25 mmol) and then dissolved in dry DMF (2 mL) under an atmosphere of nitrogen. The reaction mixture was then heated at 50 "C under a nitrogen atmosphere for 2 hours. The reaction mixture was then cooled to room temperature and diluted with ethyl acetate and washed with a solution composed of 20 NaCl/NaHCO 3
/(NH
4
)
2
CO
3 /water (1:1:1:1) (x3), water, and then dried over sodium sulfate (Na 2
SO
4 ). The crude product was purified using a SAX column to provide to give the desired (R)-3-(1H-Indol-3-yl)-2-(5-p-tolylethynyl-thiophene-2-sulfonylamino) propionic acid 5 (0.036g, 55 %). Example 2, Reaction A was repeated with same scale as above and then combined with 25 the previous batch. The combined products were then further purified using preparative, reversed-phase-HPLC to give (R)-3-(1H-Indol-3-yl)-2-(5-p-tolylethynyl-thiophene-2- WO 2012/118498 PCT/US2011/026848 34 sulfonylamino)-propionic acid 5 having a purity of >95% by HPLC. LC-MS (ES+) 465; (ES-) 463; 'H NMR (300 MHz, DMSO-d6) S 2.35 (s, 3H), 2.86-2.94 (m, 1H), 3.08-3.16 (m, 1H), 3.96-4.40 (m, 1H), 6.93-7.50 (m, 11H), 8.67 (d, 1H, J=8.7 Hz), 10.83 (s, 1H). 5 Example 3: Synthesis of 4-lodotoluine (D3, 98%) Starting Material
NH
2 Step A
CD
3
CD
3 6 7 Step A 10 Following the classic method of Griess (Practical Organic Chemistry, Richard Clay & Sons, page 144, Preparation #60, (1900)) in which 0.2 grams (1.8 mmoles) of toluidine (D3, 98%), commercially obtained from C/D/N Isotopes (Quebec, Canada) (6) is combined with 0.4 ml D 2
SO
4 (obtained commercially from Cambridge Isotope Laboratories, Andover, MA) and the resulting mixture cooled until the temperature of the 15 stirred mixture reaches 0C and then 160 mg (2.32 mmole) of sodium nitrite was slowly added in three portions over 10 minutes making sure that the temperature does not rise above 1 0 0 C. After the sodium nitrite has been added, a solution composed of 48 mg (2.9 mmole) of KI in 1 ml D 2 0 (obtained commercially from Cambridge Isotope Laboratories) was then added and the reaction mixture was allowed to warm to room temperature and 20 stirred for 1 hour. The reaction mixture was then diluted with D 2 0 (10 mL) and extracted with ether (x2). The ether layer was then washed with 10 % Na 2
S
2
O
3 in D 2 0 (x2) and dried over anhydrous sodium sulphate. The crude product (7) was then purified by column chromatography using hexane as the eluent to obtain the desired pure 4 Iodotoluene (D3, 98%) product (7) (0.16 g, 40%). 1H NMR (300 MHz, CDCI 3 ): 8, 6.93 25 (d, 2H, J=7.8 Hz), 7.56 (d, 2H, J=7.8 Hz). When the D 2
SO
4 was replaced by DCl (obtained commercially from Cambridge Isotope Laboratories, Andover, MA) only a 20% yield of 7 was obtained.
WO 2012/118498 PCT/US2011/026848 35 Example 4 Br TMS cS S \ -K- -0S HN~ "'- HN-S HN COOH Step A o Step B COOH ROO COO 0 HH H 3 8 9 Step C 1 /CD 3
CD
3 7 - O N H 10 Step A 5 In a round bottom flask was added crude compound (R)-2-(5-Bromo-thiophene-2 sulfonylamino)-3-(1H-indol-3-yl)-propionic acid product (3) (0.25 g, 0.584 mmol) (synthesized via Example 1, Step A), commercially available ethynyltrimethylsilane (0.17 g, 1.73 mmol), PdCl 2 P(PPh 3
)
2 (0.041g, 0.061 mmol), copper(I)iodide (0.006g, 0.0315 mmol), and triethylamine (0.177 g, 1.75 mmol) dissolved in dry DMF (3 mL) 10 under an atmosphere of nitrogen and mixture heated at 50 C for two hours. The reaction mixture was then diluted with ethyl acetate and washed with a solution composed of NaCl/NaHCO 3
/(NH
4
)
2
CO
3 /water (1:1:1:1) (x3), water, brine, and dried (Na 2
SO
4 ) to give the desired crude (R)-3-(1H-Indol-3-yl)-2-(5-trimethylsilanylethynyl-thiophene-2 sulfonylamino)-propionic acid 8 (185 mg, 71 %). LC-MS (ES+) 447; (ES-) 445. 15 Step B To a solution of crude (R)-3-(1H-Indol-3-yl)-2-(5-trimethylsilanylethynyl thiophene-2-sulfonylamino)-propionic acid 8 (0.126 g, 0.282mmol) in dichloromethane/methanol mixture (1:1, 10 mL) was added K 2
CO
3 (0.047g, 0.34 mmol) 20 and allowed to stir for 60 minutes. The reaction mixture was then filtered and retentate WO 2012/118498 PCT/US2011/026848 36 washed with dichloromethane-methanol mixture. The combined filtrate was concentrated under reduced pressure and then purified using a SAX column to obtain (R)-2-(5 Ethynyl-thiophene-2-sulfonylamino)-3-(1H-indol-3-yl)-propionic acid 9 (52 mg, 49%). LC-MS (ES+) 375; (ES-) 373. 5 Step C In a round bottom flask was added (R)-2-(5-Ethynyl-thiophene-2-sulfonylamino) 3-(1H-indol-3-yl)-propionic acid 9 (0.052 g, 0.139 mmol), iodotoluene-(D3, 98%) 7 10 (0.061 g, 0.28 mmol) (obtained from commercially available 4-aminotoluene(D3, 98%) via Sandmeyer reaction outlined in Example 3), PdCl 2 P[(PPh 3
)]
2 (0.01g, 0.015 mmol), copper(I)iodide (0.002g, 0.0105 mmol) and triethylamine (0.025 g, 0.247 mmol) and dissolved in dry DMF (3 mL) under an atmosphere of nitrogen and mixture heated at 50 C for 2 hours. The reaction mixture was cooled, diluted with ethyl acetate and washed 15 with a solution composed of NaCl/NaHCO 3
/(NH
4
)
2
CO
3 /water (1:1:1:1) (x3), water, brine, and then dried over sodium sulfate (Na 2
SO
4 ). The mixture was filtered and the filtrate was evaporated under reduced pressure to give crude 10 which was purified via SAX Column chromatography to give purified 10 (0.025g, 38 %). The product was further purified by preparative, reversed-phase-HPLC to obtain the desired product 10 20 (R)-3-(1H-Indol-3-yl)-2-[5-(4-trideuteromethyl-phenylethynyl)-thiophene-2 sulfonylamino]-propionic acid-(D3, 98%) in >95% purity by HPLC. LC-MS (ES+) 468; (ES-) 466. ; 'H NMR (300 MHz, MeOH-d4) 6 3.17-3.25 (m), 4.32-4.35 (m), 5.60-5.66 (m), 7.05 7.68 (m), 10.4 (br s). 25 30 35 WO 2012/118498 PCT/US2011/026848 37 Example 5 0 -' -~ 0 HOHN 5 11 N-(1-Ethoxymethoxymethyl-3-hydroxycarbamoyl-butyl)-4-phenoxy-benzamide (11) (ONO 4817) can be obtained commercially from Tocris Biosciences (Ellisville, Missouri). 10 Example 6 0 //0 0~ S0N O/O S 0 H" \ 12 N-[4-(3-Thiiranylmethanesulfonyl-phenoxy)-phenyl]-methanesulfonamide (12) (Lipton et al. W02006/036928 and Ikejiri, M. et al. Journal of Biological Chem., 280, 33992, 15 (2005)) can be commercially obtained from EMD Biosciences, Inc. (Gibbstown, NJ). Example 7 0 S 13 WO 2012/118498 PCT/US2011/026848 38 2-(3-Phenoxy-benzenesulfonylmethyl)-thiirane (13) (Lipton et al. W02006/036928 and Kleifeld, 0. et al. Journal of Biological Chem., 276, 17126, (2001)) can be commercially obtained from EMD Biosciences, Inc. (Gibbstown, NJ) or from Biomol (Pymouth Meeting, PA). 5 Example 8 CI 0 HO 10 14 4-(4'-Chloro-biphenyl-4-yl)-4-oxo-2-phenylsulfanylmethyl-butyric acid (14) [Tanomastat] can be commercially obtained from Toronto Research Chemicals, Inc. (Ontario, Canada) or from Texas Biochemicals, Inc. (College Station, TX) or can be 15 synthesized via literature procedure ((Kluender H. et al. US 5886022 (1999)). Example 9 0 Br S 0 0H 15 O 20 2-(4'-Bromo-biphenyl-4-sulfonyl)-3-methyl-butyric acid (15) [PD 166793]] can be commercially obtained from Tocris Biosciences (Ellisville, Missouri). 25 WO 2012/118498 PCT/US2011/026848 39 Example 10 5 Me N S HN O S 0 SH Me 16 O H 2-[2-Mercapto-4-(3,4,4-trimethyl-2,5-dioxo-imidazolidin- 1 -yl)-butyrylamino]-4-methyl pentanoic acid (2,2-dimethyl-1-methylcarbamoyl-propyl)-amide (16) [Rebimastat or 10 BMS-2752991] (France, S.; Organic Letters, 2005 (7(14), 3009, (2005)) can be commercially obtained from Finechemie & Pharma Co., Ltd. (Chongquing, China) or China CSPC Pharmaceutical Group (Shijiazhuang, China) or synthesized via the cited literature procedure (France, S.; Organic Letters, 2005 (7(14), 3009, (2005)). 15 Example 11 OH
NH
2 OH OH 0 OH 0 0 17 3,10,12,12a-Tetrahydroxy- 1,11 -dioxo- 1,4,4a,5,5a,6,11,12a-octahydro-naphthacene-2 20 carboxylic acid amide (17) (Rudek, M.; et al. J. Clinical Oncology, 19, 584-592 (2001)) can be obtained from Sigma-Aldrich (Milwaukee, Wisconsin).
WO 2012/118498 PCT/US2011/026848 40 Example 12 5 D3C CD3 OH
NH
2 OH OH 0 OH 0 0 18 4-Dimethyl (D6, 98%) amino-3,10,12,12a-tetrahydroxy-1,11 -dioxo-1,4,4a,5,5a,6,11,12a octahydro-naphthacene-2-carboxylic acid amide (18) can be obtained from Toronto 10 Research Chemicals, Inc. (Ontario, Canada). Example 13 N OH
NH
2 OH OH 0 OH 0 0 15 19 4-Dimethylamino-3,10,12,12a-tetrahydroxy- 1,11 -dioxo- 1,4,4a,5,5a,6,11,12a-octahydro naphthacene-2-carboxylic acid amide (19) (Sancycline) can be obtained from Toronto Research Chemicals, Inc. (Ontario, Canada). 20 25 WO 2012/118498 PCT/US2011/026848 41 Example 14 0 HO 0 N 0 O 20 5 2-[2-(4'-Chloro-biphenyl-4-yl)-2-oxo-ethyl]-5-(1,3-dioxo-1,3-dihydro-isoindol-2-yl) pentanoic acid (20) can be synthesized via literature procedures (Kluender H. et al. US 5886022 (1999) ; Example 189). Example 15 10 H 0 -H HO o N 21H 2-{4'-[(1H-Benzoimidazole-2-carbonyl)-amino]-biphenyl-4-sulfonylamino}-3-methyl butyric acid (21) can be synthesized via literature procedures (Levin, J.I.. et al. US 7420,001 B2 (2008)). 15 Example 16 H 0 -H Me ~N-- /\- U HO 0 22 20 2-{4'-[(5-Methoxy-benzofuran-2-carbonyl)-amino]-biphenyl-4-sulfonylamino}-3-methyl butyric acid (22) can be synthesized via literature procedures (Levin, J.I.. et al. US 7420,001 B2 (2008)).
WO 2012/118498 PCT/US2011/026848 42 Example 17 H 0 -H 1N-S-O N' HO 0 23 5 2-{4'-[(Benzofuran-2-carbonyl)-amino]-biphenyl-4-sulfonylamino}-3-methyl-butyric acid (23) can be synthesized via literature procedures (Levin, J.I.. et al. US 7420,001 B2 (2008)). Example 18 10 H 0 1 N-Sj \/ O HO O 24 Benzofuran-2-carboxylic acid 4'-(1-carboxy-2-methyl-propylsulfamoyl)-biphenyl-4-yl 15 ester (24) can be synthesized via literature procedures (Levin, J.I.. et al. US 7420,001 B2 (2008)). Example 19 0 0 MeN S Br 20 HO 25 WO 2012/118498 PCT/US2011/026848 43 4-(4'-Bromo-biphenyl-4-sulfonyl)-1-methyl-6-oxo-piperidine-3-carboxylic acid (25) can be synthesized via literature procedures (Chung, Y.J.; et al. Bull. Korean Chem. Soc., 29(6), 1103-1104 (2008)). 5 Example 20 HN HO I R O 0 HN- - OMe 0 26 10 3-(1H-Indol-3-yl)-2-[4-(4-methoxy-phenylethynyl)-benzenesulfonylamino]-propionic acid (26) can be synthesized via literature procedures (Tamura, Y.; et al. J. Med. Chem. 41, 640-649, (1998)). Example 21 15 \/ CN CN -C 0 o HO HN NH 27 WO 2012/118498 PCT/US2011/026848 44 3-[2-(4'-Cyano-biphenyl-4-yl)-pyrrol- 1-yl]-N-(2,2-dimethyl- 1 -methylcarbamoyl-propyl) succinamic acid (27) can be synthesized via literature procedures (Whittaker, M.; et al. Chem. Rev. 99, 2735-2776 (1999) and references within). 5 Example 22 H OH N OH OOH OH OHH 06 OH0 OH0 0OH 0 OH 0H Tetracycline (28) Tetracycline (29) Step B OH O NH2 O6H OH 0 OH 0 0 CMT-1 (30) Step A Golub and coworker (Golub, L.M.; et al., Journal of Dental Research, 66(8), 1310 1314, 1987) have found that the chemical removal of the N,N-dimethylamine 10 group of tetracycline removes all antibacterial activity from the molecule. If one started with commercially obtained (Sigma-Aldrich, Milwaukee, WI) tetracycline (28) and then if methyl iodide is added and allowed to react it would then form the resulting trialkyl iodide intermediate (29). Step B 15 The intermediate 29 could then be treated with zinc and acetic acid in water to give the resulting chemically modified tetracycline (CMT)-1 (30).
WO 2012/118498 PCT/US2011/026848 45 Example 23 5 ',OH ,OH ONH Step A ONH2 OH OH 0 OH 0 0 OH 0 OH 0 0 CMT-1 (30) CMT-7 (31) Step A 10 If one were to follow the method of Green and Booth (Green, A.; Booth, J.H.; Journal of the American Chemical Society, 82(15), 3950-3953, 1960), the dedimethyl tetracycline analog CMT-1 (30) can then undergo reductive elimination of the 12a-hydroxyl moiety with zinc and ammonium hydroxide in water to give the resulting chemically modified tetracycline (CMT)-7 (31). 15 WO 2012/118498 PCT/US2011/026848 46 Example 24 <e OH '-, OD D0D OH N<OH Step A OD OD NH2 ND2 OH O OHOD O OH 0 OH 0 0 000OHD Tetracycline (29) CMT (32) Step B ,, D D OH
ND
2 OD 0 OD 0 0 CMT (33) 5 Step A In addition to removing the trialkyl ammonium group, the method of Golub and coworker (Golub, L.M.; et al., Journal of Dental Research, 66(8), 1310-1314, 1987) can also be used to incorporate deuterium in a regioselective manner, at the C4 postion of the "A" ring of the tetracycline molecule. The trialkyl iodide 10 intermediate (29) can be treated with zinc and deuterated acetic acid in D20 to give the resulting dedimethylamine, deuterated tetracycline analog 32. Step B If one were to follow the method of Green and Booth (Green, A.; Booth, J.H.; Journal of the American Chemical Society, 82(15), 3950-3953, 1960), except that 15 deuterated solvents can be used, the dedimethyl tetracycline analog 32 can undergo reductive elimination of the 12c-hydroxyl moiety with zinc and deuterated ammonium hydroxide in D20 to give the resulting deuterated CMT (33).
WO 2012/118498 PCT/US2011/026848 47 Example 25 0 D D D 0 D D OH ND Step A D ONH D Do= OD 0 OD 0 0 OH 0 OH 0 0 5 CMT (33) CMT-7-d7 (35) Step A If one were to use the work of Sajiki and coworkers (Sajiki, H.; et al. Synthetic 10 Letters, No. 9, 1385-1388, 2005) CMT (33) can be treated with Palladium on carbon in the presence of hydrogen and deuterated water to give the resulting CMT-7-d13 which can then be treated with H20 to back exchange the amide and hyroxyl hydrogens to give the desired CMT-7-d7 (35). 15 Example 26 0 D D D ',0 00D D 00
ND
2 Step A
ND
2 OD OD 0 OH 0 0 00 0 OH 0 0 CMT (32) CMT (36) Step B D OH
NH
2 OH OH 0 OH 0 0 CMT-4-d6 (37) 20 WO 2012/118498 PCT/US2011/026848 48 Step A If one were to following the method of Yoshida and coworkers (Yoshida, T.; et al. Journal of the American Chemical Society, 101(8), 2027-2038, 1979), CMT-d8 (32) can be treated with palladium tris-triethylphosphine in deuterated water to give 5 the resulting deuterated CMT (36). Step B CMT (36) can then be treated with Palladium on carbon in the presence of hydrogen and deuterated water to give the resulting CMT-4-d13 which will can 10 then be treated with H20 to back exchange the amide and hyroxyl hydrogens to give the desired CMT-4-d6 (37). Example 27 15 OH N/ D, OF (Me) 2 N D OH NHS e D OH0H OHO OH OH Step A
NH
2 D HNH 2 OH OH0 OH0 0 OH O OHOHO 0 OH O OH O O Tetracycline (28) Tetracycline-d5 (38) Step A 20 If one were to follow the method of Yoshida and coworkers (Yoshida, T.; et al. Journal of the American Chemical Society, 101(8), 2027-2038, 1979), Tetracycline (28) can be treated with Palladium on carbon in the presence of hydrogen and deuterated water and heated to give the resulting deuterated Tetracylcine-d12. Tetracylcine-d12 can then be treated with H20 to back exchange the readily 25 exchangeable amide and hyroxyl hydrogens to give the desired Tetracylcine-d5 (38).
WO 2012/118498 PCT/US2011/026848 49 Example 28 OH D D D D
NH
2 Step A D OH OH 0 OH 0 0 DH 6H OH OH 0 OH 0 0 CMT-3 (17) CMT-3-d6 (39) Step A 5 If one were to follow the method of Yoshida and coworkers (Yoshida, T.; et al. Journal of the American Chemical Society, 101(8), 2027-2038, 1979), compound (17) can be treated with Palladium on carbon in the presence of hydrogen and deuterated water and heated to give the resulting deuterated Tetracycline-d12. Tetracycline-d12 can then be treated with H20 to back exchange the readily 10 exchangeable amide and hyroxyl hydrogens to give the desired Tetracylcine-d6 (39). Example 29 15 0 0 HO S CI N H O 0 40 N-hydroxy-4-([4-[4-chlorophenoxy] benzenesulfonyl] methyl)-2, 3, 5, 6-tetrahydropyran 4-carboxamide (40) (also identified as RO1 13-0830 or CTS-1027) can be synthesized via 20 standard literature procedures (Fisher, Lawrence E. ; Dvorak, Charles ; Green, Keena ; Janisse, Samantha; Prince, Anthony ; Sarma, Keshab ; McGrane, Paul ; Moore, David ; Campbell, Jeffrey ; Baptista, Janel ; Broka, Chris ; Hendricks, Than ; Walker, Keith ; WO 2012/118498 PCT/US2011/026848 50 Yee, Calvin From Bench to Pilot Plant. ACS Symposium Series, Vol. 817, Chapter 6, (April 19, 2002), pages 89-100 and references within). Example 105 5 In-vitro Assay for Determining Microsomal Stability of Select Compounds in Human and Mouse Microsomes. Human and mouse microsomal stability was determined for select compounds following 10 the method of Houston (Houston, JB; Biochem. Pharmacol. 47, (1994),1469). 1 ptM concentration of compound and seperate human and mouse microsomes (0.3 mg/mL, BD bioscience) were used in the in-vitro assay. To ensure proper energy supply for microsomal degradation of compound, an energy regenerating system comprised of 100 mM potassium phosphate, 2mM NADPH, 3mM MgCl 2 , pH = 7.4. and the 15 microsomal protein is added to each sample and the resulting suspension is then incubated in duplicate for 60 min at 370 C. in a rotary shaker. A control is run for each test agent in duplicate omitting NADPH to detect NADPH-free degradation. At T=O and T= 60 min., an aliquot is removed from each experimental and control reaction and then mixed with an equal volume of ice-cold Stop Solution (consisting of 0.3% acetic acid in 20 acetonitrile containing haloperidol and diclofenac as internal standards). Stopped reactions are then incubated for at least ten minutes at -20 "C, and an additional volume of water is then be added. The samples are then centrifuged to remove precipitated protein, and the supernatants are then analyzed by LC-MS/MS to determine the percentage of compound remaining. The LC-MS/MS system used was an Agilent 6410 25 mass spectrometer coupled with an Agilent 1200 HPLC and a CTC PAL chilled autosampler, all controlled by MassHunter software (Agilent), or an ABI2000 mass spectrometer coupled with an Agilent 1100 HPLC and a CTC PAL chilled autosampler, all controlled by Analyst software (ABI). After separation on a C 18 reverse phase HPLC column (Agilent, Waters, or equivalent) using an acetonitrile-water gradient system, 30 peaks were analyzed by mass spectrometry (MS) using ESI ionization in MRM mode.
WO 2012/118498 PCT/US2011/026848 51 Table 1 and 2 below show the microsomal stability of select compounds in both human and mouse microsomes. Table 1 In-vitro Human Microsomal Stability Of Select Compounds 5 Compound ID # [Compound Test Species Mean Mean Concentration Remaining Remaining (microMoles) Parent with Parent without NADPH (%)' NADPH (%)1 5 1 Human 86 89 10 1 Human 88 97 at T = 60 minutes Table 2 In-vitro Mouse Microsomal Stability Of Select Compounds 10 Compound ID # Compound Test Species %Mean %Mean Concentration Remaining Remaining (microMoles) Parent with Parent without NADPH (%)' NADPH (%)' 5 1 Mouse 83 88 10 1 Mouse 85 91 at T = 60 minutes Measuring Neuropathic Pain Inhibition -(SNL)-Mouse Animal Model:. 15 Background and Description of the Animal Model To measure the neuropathic pain inhibiting affects of the MMP inhibitors of the present invention, the spinal nerve ligation (SNL) mouse model was run on a select number of compounds. This model which began with the work of Bennet and coworkers (Bennet, G.J. et al. Pain, 33, (1988), 87-107) and was optimized by Kim and Chung (Kim, S.H.; 20 Chung, J.M. Pain, 50, (1992), 355-363) entails first, under magnification, the removal of one-third of the transverse process and then identifying and then dissecting free the L5 spinal nerve from the adjacent L4 spinal nerve in the mouse. The L5 spinal nerve is then tightly ligated using 6.0 silk suture. The nerve injury leads to hyperalgesia which WO 2012/118498 PCT/US2011/026848 52 manifests itself by enhanced responses to mechanical, heat and/or cooling stimuli. In this case, mechanical hyperalgesia is tested via Von Frey monofilaments in which filaments of varying thicknesses and bending force are individually applied to the plantar surface of the foot of the mouse. The threshold force necessary for paw withdrawal decreases 5 dramatically after the nerve surgery. Potent pain inhibitors will reverse this affect resulting in greater force needing to be applied to cause the rodent paw to withdrawal. Example 110: Intrathecal (i.t.) administration of MMP inhibitors in the (SNL)-Mouse Model of Pain. 10 Following preoperative baseline (Day -2) paw threshold measurement, FVB male mice were subjected to SNL injury (Day -1). The next day (Day 0) after SNL surgery, the animals were tested for post-operative baseline threshold measurements for mechanical allodynia; and the animals were then randomly assigned to one of 3 treatment groups (see Table 3). Over the course of the study, paw withdrawal threshold of these 15 animals was measured in response to mechanical stimulation using the von Frey Monofilament Test. To avoid systemic effects of the MMP inhibitors, the MMP inhibitors of the present invention were delivered into the cerebral spinal fluid (CSF) space around lumbosacral 20 spinal cord via intrathecal (i.t.) administration, with the idea of targeting MMPs in the DRG, spinal cord, and spinal CSF. Intrathecal MMP inhibitor administration could then target not only spinal cord cells but also DRG cells. Each intrathecal (i.t.) injection was carried out according to the technique of Hylden and Wilcox (Hylden JL, Wilcox GL. Eur. J Pharmacol., 67, (1980), 313-6) 5.2 mg of each of the MMP inhibitors were first 25 dissolved in 140 microliters of DMSO and then put into 1260 microliters of 0.5% hydroxypropyl cellulose (HPC) in water to make a fine suspension composed of compound in 10%DMSO-0.5% hydroxypropyl cellulose. 10 microliters of the mixture was injected into the intrathecal space of male FVB mice (weighing 22-25 grams each and obtained from the Jackson Laboratories, Bar Harbor, Me), by lumbar puncture in a 30 volume of 10 pl/mouse using a Hamilton microsyringe via a 30 gauge needle inserted WO 2012/118498 PCT/US2011/026848 53 between lumbar vertebrae 5 and 6. In brief, each animal was held firmly by the pelvic girdle in one hand, while the needle was inserted into the tissue on the right side of the L5 or L6 spinous process. The needle was moved forward and slipped into the groove between the spinous process and transverse process and gently moved forward to the 5 intervertebral space at ~10' angle. As the needle was inserted (-0.5 cm) within the vertebral column a tail flick was evident, and the solution was then injected. Table 3 summarizes the various treatment groups and frequency of administration. Table 3. Animal i.t. Treatment Groups & Compounds Tested Route of Administration Treatment # of Mice Dose And Frequency Vehicle 8 Group 1, i.t, daily injections, from day 1-6, 10 pl/mouse starting day 1 Compound # 5 4 Group 2, it, daily injections, from day 1-6, 10 ptl/mouse starting day 1 Compound # 10 5 Group 3, i.t, daily injections, from day 1-6, 10 pl/mouse starting day 1 10 *Vehicle = 10% DMSO, 0.5% hydroxypropyl cellulose in water Tactile Allodynia Test. Mechanical allodynia was measured using the calibrated von Frey filaments (Semmes-Weinstein monofilaments; Stoelting, Wood Dale, IL, U.S.A.). The plantar surface of the left injured paw of each animal was tested as 15 described by Chaplan et al. (Journal of Neuroscience Methods, 53, (1994), 55-63). The Fifty percent paw withdrawal threshold response was determined by sequentially increasing or decreasing the stimulus strength according to the "up-down method" of Dixon (Annual Review Pharmacology Toxicology, 20, (1980), 441-462). For mice, eight von Frey filaments were used, with approximately equal logarithmic incremental bending 20 forces (von Frey number: 1.65, 2.36, 2.44, 2.83, 3.22, 3.61, 3.84, 4.08, and 4.17; equivalent to 0.005, 0.02, 0.03, 0.07, 0.17, 0.41, 0.69, 1.20, and 1.48g force, respectively). Prior to testing, each animal was placed in a suspended clear plastic chamber with a wire mesh bottom and acclimated for 15 minutes. Testing was initiated with the 0.07 g 25 (handle marking of 2.83) applied perpendicularly to the plantar surface of the affected hind paw; each filament was applied with enough pressure to cause a buckle effect. The WO 2012/118498 PCT/US2011/026848 54 absence of a paw lifting/withdrawal response after 6 s prompted the use of the next higher weight filament. Paw withdrawal, indicating a positive response, prompted the use of a weaker filament. After the initial positive response (i.e., paw withdrawal), the testing continued for four additional measurements, and was used to calculate the 5 response threshold. Four consecutive positive responses received a score of 0.001 g, and five consecutive negative responses (i.e., no paw withdrawal) received a score of 1.5 g. Analyses for Tactile Allodynia Testing. The 50% paw withdrawal threshold was calculated (PWT; Luo and Calcutt, J. Pharmacology Experimental Therapeutics, 303(3), (2002), 1199-1205; Chaplan et al. Journal of Neuroscience Methods, 53, (1994), 55-63) 10 using the formula: 10 (Xf + K6)/10,000 where Xf is the final von Frey filament used (log units), K is a value that analyzes the response pattern (taken from the table published by Chaplan et al., 1994), and 8 is the mean difference between stimuli (log units). 15 Control of Bias. To prevent bias in the results of the study, the technical staff was not aware of the treatment history of each animal while evaluating the behavioral responses of the animals. The results of the behavior testing which is presented in Table 4 clearly show the almost complete reversal of allodynia by compound #10 as compared to vehicle and compound 20 #5. 25 30 WO 2012/118498 PCT/US2011/026848 55 Table 4. ( i.t.)-SNL-Mouse Behavioral Testing Results For Vehicle, Compounds #5 and #10 Day(-2) Day 0 Group 1: Pre-operative Postoperative Vehicle Baseline Baseline 2 Day 1 Day 5 Day 7 Mean 1.130 0.068 0.110 0.026 0.071 Std.Dev. 0.418 0.112 0.102 0.025 0.056 Day(-2) Day 0 Group 2: Pre-operative Postoperative Compound #5 Baseline I Baseline 2 Day 13 Day 5 Day 7 Mean 1.265 0.050 0.098 0.079 0.190 Std.Dev. 0.271 0.048 0.100 0.055 0.230 Group 3: Day(-2) Day 0 Compound Pre-operative Postoperative #10 Baseline Baseline 2 Day 1 3 Day 5 Day 7 Mean 1.268 0.077 0.321 0.320 1.024 Std.Dev. 0.327 0.072 0.660 0.297 0.521 'Testing prior to SNL injury (pre-operative baseline) 2 Testing 2 days after SNL injury (post operative injury baseline) 3 Testing conducted 2hr after first i.t. injection. 5 Example 111: Intraperitoneal (i.p.) administration of MMP inhibitors in the (SNL) Mouse Model of Pain. In order to better ascertain the bioavailability of the MMP compounds of the present invention when compound is administered outside of the spinal cord area, the SNL 10 mouse model was repeated with compounds #5 and #10 via intraperitoneal administration. Except for the mode of administration, number of mice/group and the number of injections and amount per injection of compound given, the rest of the study was done in the same manner (in regards to the surgeries and tactile allodynia testing and analysis) as Experiment 110. 3.2 mg of each of the MMP inhibitors #5 and #10 were 15 dissolved in 320 microliters of DMSO. To the solution was then added 32 microliters of Tween 80, followed by 2850 microliters of phosphate buffered saline (PBS). This gave a final concentration of 10% DMSO, 1% Tween and lmg/ml compound. 0.1ml of this solution was then injected per mouse/day (for five consecutive days) to give an approximate dose of 3.3mg/Kg.. The treatment groups are outlined in Table 5. The 20 results of the behavior tests can be seen in Table 6. It is clear that compound #10 shows a complete reversal of mechanical alodynia by day 5. It is interesting to point out the WO 2012/118498 PCT/US2011/026848 56 rather prolonged effect exerted by compound #10 even after 48 hours (day 6) from the last injection (day 4). 5 Table 5. Animal IP Treatment Groups Route of Administration Treatment # of mice Dose And Frequency Vehicle 3 Group 1, IP daily injections day 1-5 100 pl/mouse Compound # 5 3 Group 2, IP daily injections day 1-5, starting day 1 100 pl/mouse Compound #10 3 Group 3, IP daily injections day 1-5, starting day 1 100 gl/mouse *Vehicle = 10% DMSO, 1% Tween 80, in PBS. 10 Table 6. ( i.p.)-SNL-Mouse Behavioral Testing Results For Vehicle, Compounds #5 and #10 Day 0 Group 1: Postoperative Vehicle Baseline Day 1 Day 2 Day 5 Day 6 Day 7 Mean 0.112 0.167 0.137 0.130 0.065 0.056 Std.Dev. 0.078 0.098 0.142 0.056 0.048 0.019 Day0 Group 2: Postoperative Day 7 Compound #5 Baseline Day 1 Day 2 Day 5 Day 6 Mean 0.046 0.078 0.117 0.238 0.099 0.128 Std.Dev. 0.065 0.046 0.127 0.246 0.113 0.098 Group 3: Day 0 Compound Postoperative #10 Baseline Day 1 Day 2 Day 5 Day 6 Day 7 Mean 0.096 0.170 0.350 1.470 0.867 0.250 Std.Dev. 0.059 0.192 0.226 0.052 0.553 0.118 WO 2012/118498 PCT/US2011/026848 57 Example 120 Measuring Inflammatory Pain Inhibition- Carrageena (CARR)- induced inflammation in rats. If one were to measure the inflammatory pain inhibiting affects of the MMP inhibitors of 5 the present invention, one could use the Carrageenan model for measuring neuropathic pain as presented in LaBuda, C.J., and Fuchs, P.N. Neuroscience Letters, 304, (2001), 137-140. Acute Model: Subcutaneous injection into the hindpaw of a rat: An acute inflammatory 10 condition is produced by a subcutaneous injection of 3% lambda Carrageenan (0.12 ml) into the plantar surface of one hindpaw under light isoflurane anesthesia. Usually, there is an additional control group that receives an equal volume of saline. Animals would then receive the MMP inhibitors of the present invention 3 M hours after the CARR injection, Quantification of pain behavior could then be performed via the paw withdrawal animal 15 model using the same procedures as outlined in Experiment 110 & 111. Chronic Model: Intra-articular injection. A longer lasting state of inflammation is produced by performing intra-articular injection of CARR (0.1 ml, 3%) into the tibial joint under isoflurane anesthesia. This route of administration induces an inflammatory 20 condition that can last for up to 7 days following injection and is an established model of arthritic inflammatory pain. Quantification of pain behavior could then be performed using the same procedures as outlined in Experiments 110 & 111. Example 125 25 Morphine Tolerance & Naloxone-Precipitated Morphine Withdrawal Mouse Studies. One can measure the effects of intrathecal (i.t.) or intraparitoneal (i.p.) administration of a matrix metallorproteinase (MMP) inhibitor in a mouse model of morphine analgesia, tolerance and withdrawal. The purpose of which is to measure the effects of a MMP 30 inhibitor on 1) attenuating morphine tolerance in mice and 2) withdrawal behavior in naloxone-precipitated morphine withdrawal in mice. The animal model which was WO 2012/118498 PCT/US2011/026848 58 developed in the 1960's and refined in the early 1970's utilizes the opioid antagonist, naloxone to rapidly block the pt-opioid receptor to "precipitate" withdrawal behavior in rodents (Zachariou, V. et al.; Essential role for RGS9 in opiate action, PNAS, 100(23), p 13656-13661, (2003)). Based on the work of Song and coworkers, (The Journal of 5 Neuroscience, 30(22), (2010), 7613-7623) adult male and female CD-1 mice (Charles River Laboratories) and wild-type (WT) FVB mice (The Jackson Laboratory) weighing 24-28 g at 8-10 weeks of age were used. According to the work of Song and coworkers, a hot plate apparatus was used for the pain threshold and morphine analgesia/tolerance tests. A cutoff time of 30 s was set to avoid tissue damage. Adult Kunming (KM) mice 10 was also used as an added confirmation of the behavioral effects of administering a matrix metalloproteinase-2 and -9 inhibitor on other strains of mice. Drug Administration & Morphine withdrawal Studies: The matrix metalloproteinase (MMP) inhibitors were dissolved in phosphate buffered saline (PBS) and 15 dimethylsulfoxide (DMSO) and diluted in PBS (final concentration of DMSO for intrathecal administration was 10%). Optimally the MMP inhibitor were first dissolved in DMSO and then diluted up in PBS and 1% tween to give a final concentration of 10% DMSO, 1% Tween in PBS buffer. Administration of the MMP inhibitors (5-10 pig) and the vehicle controls PBS and DMSO were done by injecting them intrathecally (IT) (each 20 in 10 pl), respectively, under brief inhalation of anesthesia for ~5 min after each morphine injection, by means of lumbar puncture at the intervertebral space of L4-5 and L5-6 for multiple injections, using a stainless steel needle (30 gauge) attached to a 25 pl Hamilton syringe. Based on the work of Zachariou and coworkers (Zachariou V, Georgescu D, Sanchez N, Rahman Z, DiLeone R, Berton 0, Neve RL, Sim-Selley LJ, 25 Selley DE, Gold SJ, Nestler EJ Proc Natl Acad Sci U S A, Vol. 100 (1003), p. 13656 13661) as well as the work of Liu and coworkers (Liu WT, Li HC, Song XS, Huang ZJ, Song XJ ,FASEB J 23, (2009), p. 90-98) mice were injected i.p. with escalating morphine doses (20, 40, 60, 80, 100, and 100 mg/kg) every 8 h for 2.5 days (see Table 7 for study protocol). Two hours after the last morphine injection, naloxone (1 mg/kg) was 30 administered s.c. Withdrawal behaviors were then monitored for 30 min, 1 hr after the naloxone injection. Naloxone is a p-opioid receptor competitive antagonist that can be WO 2012/118498 PCT/US2011/026848 59 used to counter the effects of the morphine in the mouse and to initiate morphine withdrawal symptoms Table 7. Naloxone precipitated morphine withdrawal animal protocol Route of Administration Treatment # of mice 2 Dose 3 And Frequency Control 5 Group 1 IP escalating injections of morphine every 8 hr for 2.5 days. Vehicle' 13 Group 2, IP escalating injections of morphine with 10 pl/mouse i.t., injections of vehicle every 8 hours for 2.5 days Compound 10 14 Group 3, IP escalating injections of morphine with 10 pl/mouse i.t, injections of compound 10 every 8 hours for 2.5 days. 5 'Vehicle = 10% DMSO, 1% Tween 80, in PBS. 2 CD-1 mice weighing 24-28 g at 8-10 weeks of age. 3Compound concentration is equal to 10microgram/microliter in vehicle. 10 MMP inhibitor effects on morphine withdrawal For testing the morphine withdrawal-like behavioral signs following intrathecal MMP inhibitor administration, the withdrawal symptoms were monitored for 30 minutes 1-2 h after naloxone administration. In addition to measuring individual withdrawal signs, an overall opiate withdrawal score was calculated using a calculation taken from the work of Song and coworkers (The Journal 15 of Neuroscience, 30(22), (2010), 7613-7623) as well as others (Zachariou et al., 2003; Liu et al., 2009a) (no. of backward walking steps X 0.1) + (diarrhea X 2) + (no. of jumps X 0.1) + (paw tremor X 0.1) + ptosis + tremor + (% weight loss X 5) + no. of wet-dog shakes. The results showed that Compound 10 was able to reduce overall morphine withdrawal behavior as compared to control and vehicle (see Figure 1 A-J) 20 Gelatin Zymography for measuring any MMP-2 and/or MMP-9 rebound effect. Gelatin zymography was done following the method of Song and coworkers, (The Journal of Neuroscience, 30(22), (2010), 7613-7623) to determine the levels of MMP-2 and MMP-9 in mice spinal cord (containing segments L1-L6) before, during and after administration of compound 10. The purpose of this study was to see if there were any 25 MMP-2 and/or MMP-9 rebound effects due to the withdrawal of compound 10 during the naloxone precipitated withdrawal animal model. There were three groups in the study WO 2012/118498 PCT/US2011/026848 60 comprising six mice for each group (NaYve, control and compound 10 groups). The results showed that at 0.5 and 2 hours after naloxone precipitated withdrawal and cessation of compound 10 administration, MMP-2 and MMP-9 levels stayed the same or were slightly lower than the control (mice not given compound 10 but underwent 5 withdrawal) groups. No evidence of a MMP-2 and/or MMP-9 rebound effect was observed due to discontinuation of compound 10. MMP inhibitor effects on attenuating morphine pain blocking. To test the effects of MMP inhibitors on the pain threshold and the initial analgesic response to morphine, mice can 10 be placed on a 55'C hot plate apparatus and the latency to lick a paw measured. Data can be calculated as the percentage maximal possible effect (MPE%), which can be calculated by using the formula from Song and coworkers (The Journal of Neuroscience, 30(22), (2010), 7613-7623) (the following formula: 100 X [(drug response time - basal response time)/ (30 s - basal response time)]= MPE%. Morphine (10 mg/kg, s.c.), MMP 15 inhibitor (5-10 pig, i.t.) and the control vehicles PBS and DMSO (1%, i.t.) can be administered 30 min before testing. The protocol would be the same as that described by the groups of Song et al., Zachariou et al. and Liu et al. To evaluate the physical tolerance to morphine each mouse can be placed on a 55'C hot plate apparatus, and the latency to lick a paw measured following subcutaneous morphine injection. For testing acute 20 tolerance, the latency to lick a paw can be measured at 0.5, 1, 1.5, and 2 h after a single dose of morphine at 10 mg/kg, administered 24 h after a morphine treatment at 100 mg/kg. Chronic tolerance can be tested following repetitive treatment of morphine at 10 mg/kg given daily for 7 days, and the analgesic effect measured 30 min after each injection. 25 Example 126 Self-Administration Rodent Models For Addiction Testing Cue-Initiated Relapse: Evaluation of MMP-2 and MMP-9 inhibitors on cue initiated relapse associated with the self administration of an addictive substances such as 30 opioids, amphetamines, alcohol, nicotine or cocaine. This animal model is based on the WO 2012/118498 PCT/US2011/026848 61 idea that exposures to cues previously associated with an addictive drug such as opioids, amphetamines, alcohol, nicotine or cocaine administration can precipitate relapse to addictive drug-seeking behavior in abstinent rats that have had previous addictive drug self-administration histories (Shelton, K.L.; Beardsley, P.M.; Effects of drug-paired 5 exteroceptive stimuls presentations on methamphetamine reinstatement in rats, Parmacology Biochemistry & Behavior, 90(3), 434-440, (2008)). This effect is considered analogous to clinical instances when re-exposure to environments and drug paraphernalia precipitate relapse to the addictive substance. Chemicals which reduce the effectiveness by which addictive substance seeking can be reinstated in this way are 10 considered to show promise as potential medications for preventing relapse in substance abusers. Twelve male rats (Long-Evans) can be used to evaluate each dose of the MMP-2 and/or MMP-9 inhibitor or vehicle which can be given via oral administration. Following acclimation to a vivarium, indwelling venous catheters can be implanted into the right external jugular vein. Rats are then allowed to recover from surgery for at least 5 days 15 before self administration training begins. Self-administration training sessions during which 0.1 mg/kg/infusion of the addictive substance is available occur for 2 hrs each day. At the start of addictive drug self-administration sessions the levers are extended and the house light is illuminated. During training each press of the right-side lever results in a 6 s addictive drug infusion followed by a 14 s timeout period. At the start of an infusion the 20 house light is extinguished, the Sonalert is sounded, and the cue lights above each lever flash at a 3 Hz frequency. The Sonalert. and cue lights remain activated during the 6 s infusion. Twenty seconds following the onset of the infusion the house light can be reilluminated, and the opportunity to self-administer the addictive drug is again made available (i.e., each addictive drug infusion can initiate a 20-s period during which lever 25 presses can be recorded but are without scheduled consequences and further infusions cannot be obtained). Twelve rats can be used to evaluate each oral dose of the MMP-2 and/or MMP-9 inhibitor or vehicle. Other Rodent Models Involving Self-Administration of Addictive Substances: Each rat is 30 trained to press two levers equally in an operant chamber. Following training, one lever can be randomly assigned as the active lever; the other lever can be inactive. Self- WO 2012/118498 PCT/US2011/026848 62 administration of of the addictive substance such as nicotine or methamphetamine testing can begin about 7 days after jugular catheter implantation. For studies of the reinforcement-enhancing effects of nicotine, animals can respond for an unconditioned non-drug reinforcer (e.g., a light or sound) in the presence or absence of nicotine 5 delivered via s.c. injection. Other behavioral paradigms can include concurrent choice procedures in which animals can earn nicotine (i.e., cocaine, methylamphetamine, an opioid et al.) and non-drug reinforcers in the same session (Palmatier, M. I., F. F. Evans Martin, et al. (2006). "Dissociating the primary reinforcing and reinforcement-enhancing effects of nicotine or some other addictive substance using a rat self-administration 10 paradigm with concurrently available drug and environmental reinforcers." Psychopharmacology (Berl) 184(3-4): 391-400.). Conditioned place preference can also be used to compliment the self-administration studies and determine whether the appetitive properties of contextual stimuli associated with addictive substance (i.e., nicotine, amphetamines, cocaine or opioids) are disrupted by the MMP-2 and/or MMP-9 15 inhibitor. Finally, locomotor activation can be measured in open field chambers. For all of the suggested experiments, it is proposed that one use multiple doses of the MMP-2 and/or MMP-9 inhibitor, a saline control, and a positive control (for example to measure nicotine addiction one would use varenicline or bupropion as a postive control) and a total of 15 rodents per group/condition. 20 Example 130. Assay for Determining MMP-2 Inhibition MMP-2 inhibitor activity was carried out via the method of Knight (Knight, C.G. et. al, 25 FEBS LETT. 296 (3), (1992), 263-266) , using an assay buffer comprised of 50 mM Tris HCl, pH 7.6, 200 mM NaCl, 5mM CaCl 2 and 1 tM ZnSO 4 . A concentration of MMP inhibitor of the present invention was tested (1 microMolar) in duplicate runs. Catalytic domain of MMP-2 (human recombinant) enzyme (10 nanoMolar) was added to the compound solution. The mixture of enzyme and compound in assay buffer was then 30 thoroughly mixed and incubated for 60 minutes at 37 C. Upon the completion of incubation, the assay was then started by the addition of 10 ptM of fluorescent substrate WO 2012/118498 PCT/US2011/026848 63 Mca-P-L-G-L-Dpa-A-R-NH2 (Kd ~ 8 microMolar). The fluorescent product, McaPLG, was then measured at excitation of 355 nm and emission 405 nm by an automatic plate multireader at 37'C. A positive control was separately run using the broad spectrum MMP inhibitor GM6001 as a control compound (MMP-2 IC50 = 0.5 nanoMolar). Table 5 7 summarizes the results of the inhibition study. Table 7. Percent MMP-2 Inhibition Compound Compound Substrate Substrate Average ID# Concentration Concentration Percent Inhibition 5 1 microMolar Mca-P-L-G-L- 10 microMolar 97% Dpa-A-R-NH2 10 1 microMolar Mca-P-L-G-L- 10 microMolar 96% Dpa-A-R-NH2 10 Example 131. Assay for Determining MMP-9 Inhibition MMP-9 inhibitor activity was carried out via the method of Bickett, D.M.; (Bickett, D.M., et al Analytical Biochemistry 212, (1993), 58-64) , using an assay buffer comprised 15 of 50 mM Tris-HCl, pH 7.6, 200 mM NaCl, 5mM CaCl 2 and 1 tM ZnSO4. A concentration of MMP inhibitor of the present invention was tested (1 microMolar) in duplicate runs. Catalytic domain of MMP-9 (human recombinant) enzyme (10 nanoMolar) was added to the compound solution. The mixture of enzyme and compound in assay buffer was then thoroughly mixed and incubated for 60 minutes at 37 C. Upon 20 the completion of incubation, the assay was started by the addition of 10 piM of fluorescent substrate DNP-Pro-Cha-Gly-Cys(Me)-His-Ala-Lys(N-Me-Abz)-NH2 [Cha = p-cyclohexylalanyl; Abz = 2-aminobenzoyl (anthraniloyl)] (Kd ~ 7 microMolar). The fluorescent product, DnpPChaG, was then measured at excitation of 365nm and emission 450 nm by an automatic plate multireader at 37'C. A positive control was separately run WO 2012/118498 PCT/US2011/026848 64 using the broad spectrum MMP inhibitor GM6001 as a control compound (MMP-9 IC50 = 0.2 nanoMolar). Table 8 summarizes the results of the inhibition study. 5 Table 8. Percent MMP-9 Inhibition Compound Compound Substrate Substrate Average ID# Concentration Concentration Percent Inhibition 5 1 microMolar DNP-Pro-Cha-Gly- 10 microMolar 82% Cys(Me)-His-Ala Lys(N-Me-Abz) NH2 10 1 microMolar DNP-Pro-Cha-Gly- 10 microMolar 78% Cys(Me)-His-Ala Lys(N-Me-Abz) NH2 Example 132. Assay for Determining MMP-1 Inhibition 10 If one were interested in measuring the MMP-1 inhibitor activity of the MMP inhibitors of the present invention one could use the method of Knight (Knight, C.G. et. al, , FEBS LETT. 296 (3), (1992), 263-266), in which an assay buffer comprising of 50 mM Tris HCl, pH 7.6, 200 mM NaCl, 5mM CaCl 2 and 1 pM ZnSO4 is used. A single 15 concentration could be tested (i.e., 1 microMolar) in duplicate runs. Catalytic domain of MMP-1 (human recombinant) enzyme could then be added to the compound solution. The mixture of enzyme and compound in assay buffer would then be thoroughly mixed and incubated for 60 minutes at 37 0 C. Upon the completion of incubation, the assay would then be started by the addition of 10 pM of fluorescent substrate DNP-Pro-Cha 20 Gly-Cys(Me)-His-Ala-Lys(N-Me-Abz)-NH2 [Cha = P-cyclohexylalanyl; Abz = 2 aminobenzoyl (anthraniloyl)] (10pM). The fluorescent product, DnpPChaG, could then be measured at an excitation wavelength of 365nm and emission wavelength of 450 nm WO 2012/118498 PCT/US2011/026848 65 using an automatic plate multireader at 37'C. A positive control could also be run separately using the broad spectrum MMP inhibitor Tyr-hydroxamic acid as a control compound. 5 Example 133. Assay for Determining MMP-7 Inhibition If one were interested in measuring the MMP-7 inhibitor activity of the MMP inhibitors of the present invention one could use the method of Knight (Knight, C.G. et. al, , FEBS 10 LETT. 296 (3), (1992), 263-266), in which an assay buffer comprising of 50 mM Tris HCl, pH 7.6, 200 mM NaCl, 5mM CaCl 2 and 1 piM ZnSO4 is used. A single concentration could be tested (i.e., 1 microMolar) in duplicate runs. Catalytic domain of MMP-7 (human recombinant) enzyme could then be added to the compound solution. The mixture of enzyme and compound in assay buffer would then be thoroughly mixed 15 and incubated for 60 minutes at 37 C. Upon the completion of incubation, the assay would then be started by the addition of 10 pM of fluorescent substrate Mca-P-L-G-L-Dpa A-R-NH2. The fluorescent product, McaPLG, could then be measured at an excitation wavelength of 355 nm and emission wavelength of 405 nm using an automatic plate multireader at 37 0 C. A positive control could also be run separately using the broad 20 spectrum MMP inhibitor Tyr-hydroxamic acid as a control compound. Example 134. Assay for Determining MMP-3 Inhibition 25 If one were interested in measuring the MMP-3 inhibitor activity of the MMP inhibitors of the present invention one could use the method of Knight (Knight, C.G. et. al, , FEBS LETT. 296 (3), (1992), 263-266), in which an assay buffer comprising of 50 mM Tris HC1, pH 7.6, 200 mM NaCl, 5mM CaCl 2 and 1 tM ZnSO4 is used. A single concentration could be tested (i.e., 1 microMolar) in duplicate runs. Catalytic domain of 30 MMP-3 (human recombinant) enzyme could then be added to the compound solution. The mixture of enzyme and compound in assay buffer would then be thoroughly mixed and incubated for 60 minutes at 37 "C. Upon the completion of incubation, the assay WO 2012/118498 PCT/US2011/026848 66 would then be started by the addition of 10 iM of fluorescent substrate McaRPKPVENvalWRK(Dnp)NH2. The fluorescent product, McaRPK, could then be measured at an excitation wavelength of 355 nm and emission wavelength of 405 nm using an automatic plate multireader at 37 0 C. A positive control could also be run 5 separately using the broad spectrum MMP inhibitor Tyr-hydroxamic acid as a control compound. Example 135. Assay for Determining MMP-12 Inhibition 10 MMP-12 inhibitor activity can be carried out by first separating the cleaved and uncleaved substrates by charge via electrophoretic mobility shift and then measuring the fluorescence of the separated products and comparing them with control reactions to determine inhibition of enzyme activity. One could then run the MMP-12 assay using an 15 assay buffer comprised of 100 mM HEPES, pH 7.5, 0.01% Brij-35, 1.5 mM NaCl and 2 mM CaCl 2 . A single inhibitor concentration could be tested (i.e. 1 microMolar) in duplicate runs. The reaction could be started by first the addition of substrate and then incubating the reaction mixture for 1 hour at room temperature. The reaction could then be terminated via the addition of a stop buffer consisting of 100mM HEPES (pH 7.5), 30 20 mM EDTA, 0.015% Brij-35, and 5% DMSO. A positive control could then be run separately using the broad spectrum MMP inhibitor GM6001 as a control compound. 25 Example 136. Assay for Determining MMP- 13 Inhibition If one were interested in measuring the MMP- 13 inhibitor activity of the MMP inhibitors of the present invention one could use the method of Knight (Knight, C.G. et. al, , FEBS 30 LETT. 296 (3), (1992), 263-266), in which an assay buffer comprising of 50 mM Tris HCl, pH 7.6, 200 mM NaCl, 5mM CaCl 2 and 1 pM ZnSO4 is used. A single concentration could be tested (i.e., 1 microMolar) in duplicate runs. Catalytic domain of MMP-13 (human recombinant) enzyme could then be added to the compound solution.
WO 2012/118498 PCT/US2011/026848 67 The mixture of enzyme and compound in assay buffer would then be thoroughly mixed and incubated for 60 minutes at 37 C. Upon the completion of incubation, the assay would then be started by the addition of 10 pM of fluorescent substrate Mca-P-L-G-L-Dpa A-R-NH2. The fluorescent product, McaPLG, could then be measured at an excitation 5 wavelength of 355 nm and emission wavelength of 405 nm using an automatic plate multireader at 37 0 C. A positive control could also be run separately using the broad spectrum MMP inhibitor Tyr-hydroxamic acid as a control compound.

Claims (21)

1. A compound selected from the group consisting of: 5 WO 2012/118498 PCT/US2011/026848 69 CN - N
2 OH HO 0 R N I NH / I R R R 2 R 2 NOH2 HO HN H O OHH O OH OH -a l OH R H OH 0 OH 0 0 II Ix O N 0I 0 R 1 R 2 R -N s R 2 anNOOR 0 0 x HO /\ \ R1 R 2 IVR 1 R 2 O OH2 \ N- 0 H -- y0 OH 0 OH OH00 N 0HN XI R 0 SH 0 ,NR HOV H HO R2 HO R 0 s o __H I H Ho 1 H 00 R 1 -N ~ 2 adH\ 0 H 0 HO VII xiII WO 2012/118498 PCT/US2011/026848 70 wherein: R', R2 is independently selected from the group consisting of hydrogen, halo, 5 alkyl, cycloalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, 10 heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, heterocycloalkyl fused heteroarylalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, 15 spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, hydroxy, alkoxy, aryl, heteroaryl, arylalkyl, heteroarylalkyl, alkenyl, alkynyl, NO 2 , NR 9 R 9 , NR9NR 9 R 9 , NR 9 N=CR 9 R 9 , NR 9 SO 2 R 9 , CN, C(O)OR 9 , and fluoroalkyl, wherein alkyl, cycloalkyl, alkoxy, alkenyl, alkynyl and fluoroalkyl are optionally substituted one or more times and 20 heterocycloalkyl fused heteroarylalkyl are optionally substituted one or more times; N-oxides, deuterated analogs, pharmaceutically acceptable salts, prodrugs, formulations, polymorphs, tautomers, racemic mixtures and stereoisomers thereof. 25 2. A compound selected from the group consisting of: WO 2012/118498 PCT/US2011/026848 71 0 N CI Me HO H 0 - N N o l20 0 SH Me 4 (Rebim(tat) H OHO 0 NH2NH H HO NH 0OO M1 H 26 ( 27 0 OHMN- ~-NH2 Me\ \/7 B OH 0 25 OH 0 OH 0 0 HO 17 H 0 - H 0y 0 \/NN N~ HO 0 NH 1 S 13 21 0 H 0 -H 0 - H o 0 0 0 \ / e - \/ 0 -O> - 022 0 0 0 0 \ / 00 2 H 0 14 (Tanomastat) ON ro) OH 0 00 OHH HOH 0 OH 0 0 a o11 (ONO 4817) NHOH 19 (Sancycline) WO 2012/118498 PCT/US2011/026848 72 HN OH OH 0 0 ) NN CD 10 5 (S3304) D3C CD3 B OH Br \/ \ I NH2 0 OH O 14 (PD 166793) 0 OH 0 OH 0 0 18 OH H O H N NH2 NH OH 0 OH O 0 H 23 17 Me/Me 0D N /D D Do D O H N0 OH H KO C H OH OH 0 OH 0 0 OH 0 OH 0 0 38 39 D OH D D 0 D OH HD0 2 D OH 0 H =3OH H 0 OH 0 0 3 37 0 0~ HO\c N0 H o 40(R0113-0830) WO 2012/118498 PCT/US2011/026848 73 0 CD, HO CM e ~ ciMe N--CD2 O N H N 0 N HN O 0 0 SH Me D 0 D NH O N S CDs N OHN DC \ 0 SH 0 NN HH N- CNN 0 0 0 0 DCN S / \ B 0 HO HN NH O HOC O H N -N H NH 0 0 0 0H O OH 0 H H -0 H HO c O CD S-CD2 O d WO 2012/118498 PCT/US2011/026848 74 0 -0 H0 NC1 MeON N HN CN NO HO O 0H MeNMB H 000 0 HO HN NH O Me HO H O o 0 OHN N 0 H/ 1 \/ H- - H/S H0 H H0 0 0 HO - 1 0 OH 0 0 and 0 N NHOH H 5 or a pharmaceutically acceptable salt or deuterated analog thereof.
3. A pharmaceutical composition comprising an effective amount of the compound of claim 1 and a pharmaceutically acceptable carrier. WO 2012/118498 PCT/US2011/026848 75
4. A compound selected from the group consisting of: WO 2012/118498 PCT/US2011/026848 76 N -CN 2 OH O 00 R' 0 NHN0 - / 0;S HO HN N H / 11a H R R2 S NH2 R R2 OH OH R R2 RNH2 OH 0 O H 0 0 H O O 00 N 0 O H 0 R s R2 HO HN O N H O H II0 R' R 2 0 0 /x HO-/ ci R 2R 1 Ra 2 OH HO IVII NH 2 \ 0 H 0OH 0 OH 0 0 N N N HN 0 R I HO H HOs 0 ___ H o H0 VI 0 R 1 -N 1 D -R2and HO\ N 0 H 0 HO ViI xiii WO 2012/118498 PCT/US2011/026848 77 wherein: R1, R2 is independently selected from the group consisting of hydrogen, halo, alkyl, cycloalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, 5 spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, heterocycloalkyl fused 10 heteroarylalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, 15 heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, hydroxy, alkoxy, aryl, heteroaryl, arylalkyl, heteroarylalkyl, alkenyl, alkynyl, NO 2 , NR 9 R 9 , NR 9 NR 9 R 9 , NR 9 N=CR 9 R 9 , NR 9 SO 2 R 9 , CN, C(O)OR 9 , and fluoroalkyl, wherein alkyl, cycloalkyl, alkoxy, alkenyl, alkynyl and fluoroalkyl are optionally substituted one or more times and heterocycloalkyl fused heteroarylalkyl are optionally substituted one or more times; 20 N-oxides, deuterated analogs, pharmaceutically acceptable salts, prodrugs, formulations, polymorphs, tautomers, racemic mixtures and stereoisomers thereof for use as a medicament to inhibit a metalloproteinase enzyme.
5. The use of claim 4, wherein said metalloprotease enzyme comprises one or more 25 enzymes selected from the group consisting of MMP-1, MMP-2, MMP-3, MMP-7, MMP-9, MMP-12 and MMP-13.
6. The use of claim 4, wherein said metalloprotease enzyme is an MMP-2, MMP-9 or both. 30
7. The use of claim 4, wherein said metalloprotease enzyme is an MMP-2 enzyme. WO 2012/118498 PCT/US2011/026848 78
8. A compound selected from the group consisting of: WO 2012/118498 PCT/US2011/026848 79 N C 2 OH 0 0 0 R 0; / 2 R N O0; HO HN NH H -1 \ H I R R1 R 2 O R2 OH NH 2 RN O O5H -0 H OH 0 OH 0 0 II Ix R 2 R2 0 N H s N HO C\R R2RX R R R2 R 2 OH IVI .- ~ NH 2 \ 0 H N 0 OH 0 OH 0 O N HN 0 SH 0 N HO R2H HO 2 HO N - -- 2 0 _0 N-S R_ H 0 R 1 -N R 2 and HO sOR HO 0 H 0 HO ViI xiII WO 2012/118498 PCT/US2011/026848 80 wherein: R', R2 is independently selected from the group consisting of hydrogen, halo, 5 alkyl, cycloalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, 10 heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, heterocycloalkyl fused heteroarylalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, 15 spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, hydroxy, alkoxy, aryl, heteroaryl, arylalkyl, heteroarylalkyl, alkenyl, alkynyl, NO 2 , NR 9 R 9 , NR 9 NR 9 R 9 , NR 9 N=CR 9 R 9 , NR 9 SO 2 R 9 , CN, C(O)OR 9 , and fluoroalkyl, wherein alkyl, cycloalkyl, alkoxy, alkenyl, alkynyl and fluoroalkyl are optionally substituted one or more times and 20 heterocycloalkyl fused heteroarylalkyl are optionally substituted one or more times; N-oxides, deuterated analogs, pharmaceutically acceptable salts, prodrugs, formulations, polymorphs, tautomers, racemic mixtures and stereoisomers thereof for use as a medicament for treating an MMP mediated condition. 25
9. The use according to claim 8 wherein the condition is selected from the group consisting of enhanced or exaggerated sensitivity to pain; acute pain; bum pain; atypical facial pain; neuropathic pain; back pain; complex regional pain syndromes I and II ; arthritic pain; sports injury pain; pain related to viral infection; phantom limb pain; labor 30 pain; cancer pain; post-chemotherapy pain; post-stroke pain; post- operative pain; WO 2012/118498 PCT/US2011/026848 81 physiological pain; inflammatory pain; acute inflammatory conditions; visceral pain; neuralgia; painful diabetic neuropathy; traumatic nerve injury; spinal cord injury; paralysis; aging; reperfusion injury; trauma; chemical exposure or oxidative damage to tissues; wound healing; skin beautifying; addiction and/or tolerance and withdrawal from 5 substances of addiction.
10. The use of claim 9, wherein said enhanced or exaggerated sensitivity to pain is selected from the group consisting of hyperalgesia, causalgia and allodynia.
11. The use of claim 9, wherein said pain related to viral infection is selected from the group consisting of HIV pain, post-polio syndrome and post-herpetic neuralgia. 10
12. The use of claim 9, wherein said visceral pain is selected from the group consisting of angina, irritable bowel syndrome (IBS) and inflammatory bowel disease.
13. A compound selected from the group consisting of: WO 2012/118498 PCT/US2011/026848 82 NCN/2 OH O 00 R /--a - 0; HO HN NHH / \ H I R NH 2 R O R2 H OH O H OH 0 OH 0 0 II IX s s R 2 N NHOH HO CI O 0 1 R 2 N 0 x HO SH Oc H R2 R 2 OH IV NH 2 O0H \ N- 0 H -- y0 OH 0 OH 0 0 O N - HR NN R HO 0 VX 0 N- - 0 / N \1 H oI II - 0 R'-N s / \/ R 2 and HO N 0 H 0 HO VII XIII WO 2012/118498 PCT/US2011/026848 83 wherein: R1, R2 is independently selected from the group consisting of hydrogen, halo, alkyl, cycloalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, 5 spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, heterocycloalkyl fused 10 heteroarylalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, 15 heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, hydroxy, alkoxy, aryl, heteroaryl, arylalkyl, heteroarylalkyl, alkenyl, alkynyl, NO 2 , NR 9 R 9 , NR9NR 9 R 9 , NR 9 N=CR 9 R 9 , NR 9 SO 2 R 9 , CN, C(O)OR 9 , and fluoroalkyl, wherein alkyl, cycloalkyl, alkoxy, alkenyl, alkynyl and fluoroalkyl are optionally substituted one or more times and heterocycloalkyl fused heteroarylalkyl are optionally substituted one or more times; 20 N-oxides, deuterated analogs, pharmaceutically acceptable salts, prodrugs, formulations, polymorphs, tautomers, racemic mixtures and stereoisomers thereof for use as a medicament for treating an MMP mediated disease. 25
14. The use according to claim 13, wherein the disease is selected from the group consisting of: rheumatoid arthritis, osteoarthritis, abdominal aortic aneurysm, cancer, inflammation, atherosclerosis, multiple sclerosis, chronic obstructive pulmonary disease, ocular diseases, neurologic diseases, psychiatric diseases, thrombosis, bacterial infection, Parkinson's disease, fatigue, tremor, diabetic retinopathy, vascular diseases of the retina, 30 dementia, cardiomyopathy, renal tubular impairment, diabetes, psychosis, dyskinesia, WO 2012/118498 PCT/US2011/026848 84 pigmentary abnormalities, deafness, inflammatory and fibrotic syndromes, intestinal bowel syndrome, allergies, Alzheimer's disease, arterial plaque formation, periodontal disease, viral infection, alcholism, drug abuse, stroke, atherosclerosis, cardiovascular disease, haemorrhoid, and disease causing pain. 5
15. The use according to claim 9, wherein the condition is neuropathic pain.
16. The use according to claim 9, wherein the condition is osteoarthritic pain. 10
17. The use according to claim 9, wherein the condition is inflammatory pain.
18. The use according to claim 9, wherein the condition is substance addiction.
19. The condition according to claim 18, wherein the substance of addiction is 15 selected from the group consisting of opioids, amphetamines, cocaine, morphine, alcohol, tobacco, nicotine and cannabis.
20. A pharmaceutical composition comprising: A) An effective amount of a compound selected from the group consisting of: WO 2012/118498 PCT/US2011/026848 85 N C O 2 OH 0 0 R4 - 0 0 HO HN NH H H ; I R 2 RNH R O -R2 OH III OROH NH, RR OH 0 H OH 0 OH 0 0 II Ix R2 H H S O 0 N- O H N-2 0 NHOH R1- 0 R R 2 0 0 x HO / / ci R1 R2R' R 2 OH IV 1111NH 2 0 OH \ 0-- H -- y0 OH 0 OH 00 NI 0 HNxi 0SH 0 NR1 HOV H HO 0 N~~S/ ~ R'; H 0 H 0 0 VI0 R-N s and '~ HO\ N 0 H 0 HO ViI xiII WO 2012/118498 PCT/US2011/026848 86 wherein: R1, R2 is independently selected from the group consisting of hydrogen, halo, alkyl, cycloalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, 5 spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, heterocycloalkyl fused 10 heteroarylalkyl, heterocycloalkyl, bicycloalkyl, heterobicycloalkyl, spiroalkyl, spiroheteroalkyl, aryl, heteroaryl, cycloalkyl fused aryl, heterocycloalkyl fused aryl, cycloalkyl fused heteroaryl, heterocycloalkyl fused heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, bicycloalkylalkyl, heterobicycloalkylalkyl, spiroalkylalkyl, spiroheteroalkylalkyl, arylalkyl, heteroarylalkyl, cycloalkyl fused arylalkyl, 15 heterocycloalkyl fused arylalkyl, cycloalkyl fused heteroarylalkyl, hydroxy, alkoxy, aryl, heteroaryl, arylalkyl, heteroarylalkyl, alkenyl, alkynyl, NO 2 , NR 9 R 9 , NR 9 NR 9 R 9 , NR 9 N=CR 9 R 9 , NR 9 SO 2 R 9 , CN, C(O)OR 9 , and fluoroalkyl, wherein alkyl, cycloalkyl, alkoxy, alkenyl, alkynyl and fluoroalkyl are optionally substituted one or more times and heterocycloalkyl fused heteroarylalkyl are optionally substituted one or more times; 20 N-oxides, deuterated analogs, pharmaceutically acceptable salts, prodrugs, formulations, polymorphs, tautomers, racemic mixtures and stereoisomers thereof. B) a pharmaceutically acceptable carrier; and C) a member selected from the group consisting of: (a) a disease modifying 25 antirheumatic drug; (b) a nonsteroidal anti-inflammatory drug; (c) a COX-2 selective inhibitor; (d) a COX- 1 inhibitor; (e) an immunosuppressive; (f) a steroid; (g) a biological response modifier; (h) an opioid; and (i) a small molecule inhibitor of pro-inflammatory cytokine production. 30
21. A pharmaceutical composition comprising an effective amount of at least one compound of claim 2 and a pharmaceutically acceptable carrier.
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